---
product_id: 533847214
title: "M505B Wireless Trackball Mouse, Rechargeable Ergonomic RGB Rollerball Mouse, Easy Index Finger Control with 5 Adjustable DPI, 3 Device Connection for PC, Laptop, iPad, Mac, Windows, Android"
brand: "nulea"
price: "353.92 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Nulea"
url: https://www.desertcart.tn/products/533847214-m505b-wireless-trackball-mouse-rechargeable-ergonomic-rgb-rollerball-mouse-easy
store_origin: TN
region: Tunisia
---

# 5 DPI levels for precision 3-device multi-connectivity 45-day rechargeable battery life M505B Wireless Trackball Mouse, Rechargeable Ergonomic RGB Rollerball Mouse, Easy Index Finger Control with 5 Adjustable DPI, 3 Device Connection for PC, Laptop, iPad, Mac, Windows, Android

**Brand:** nulea
**Price:** 353.92 DT
**Availability:** ✅ In Stock

## Summary

> 🎨 Roll in style, work in comfort — the ultimate trackball upgrade!

## Quick Answers

- **What is this?** M505B Wireless Trackball Mouse, Rechargeable Ergonomic RGB Rollerball Mouse, Easy Index Finger Control with 5 Adjustable DPI, 3 Device Connection for PC, Laptop, iPad, Mac, Windows, Android by nulea
- **How much does it cost?** 353.92 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/533847214-m505b-wireless-trackball-mouse-rechargeable-ergonomic-rgb-rollerball-mouse-easy)

## Best For

- nulea enthusiasts

## Why This Product

- Trusted nulea brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Vibrant RGB Ambiance:** Customizable RGB lighting adds a sleek, modern vibe to your professional setup.
- • **Endurance That Keeps Up:** Rechargeable battery lasts up to 45 days on a single charge—work uninterrupted.
- • **Ergonomic Comfort Revolution:** Designed to reduce wrist strain with a 44mm index finger trackball for all-day ease.
- • **Precision at Your Fingertips:** Switch effortlessly between 5 adjustable DPI settings to match your workflow speed.
- • **Seamless Multi-Device Control:** Connect up to 3 devices via Bluetooth or 2.4GHz wireless and switch instantly.

## Overview

The Nulea M505B is a rechargeable wireless trackball mouse engineered for ergonomic comfort and precision. Featuring a 44mm index finger trackball, 5 adjustable DPI modes, and multi-device connectivity (Bluetooth + 2.4GHz), it supports PC, Mac, iPad, and Android. With up to 45 days of battery life and customizable RGB lighting, it’s designed to enhance productivity while reducing wrist strain in any workspace.

## Description

Product description MEASURE YOUR HAND, CHOOSE THE RIGHT MOUSE M505B is ideally suited for individuals with medium to large-sized hands. Ergonomic Design Flexible Index Finger Control This mouse's shape fits the curve of your hand, maximizing comfort and reducing muscle stress. The 44mm index finger trackball enhances cursor control, reduces wrist pain and eases arm discomfort. Suitable for Tight Workspaces Long-Lasting Battery The smooth index finger trackball allows you to move your cursor efficiently on almost any surface, making it ideal for cramped workspaces. The built-in rechargeable battery lasts up to 45 days on a single full charge, ensuring you can use it for extended periods without worrying about charging. Right mouse button Forward/Backward Keys Left Mouse Button Precision Scroll Wheel Triple connection USB receiver Meet Nulea Ergo Series Promote natural postures and relaxed movements with innovative and smart designs How to charge the mouse and know its charging state? 1.Use the provided USB-C to USB-A charging cable to charge the mouse.The low battery and charging indicator is in the slit of the scroll wheel 2.The charging indicator shows red during charging and turns green when fully charged. How to charge the mouse and know its charging state? 1.Use the provided USB-C to USB-A charging cable to charge the mouse.The low battery and charging indicator is in the slit of the scroll wheel 2.The charging indicator shows red during charging and turns green when fully charged. How to wake up the mouse? 1.In wireless connection mode, the M505 mouse enters sleep mode 30 minutes after you last used the mouse. 2.lf you need to use the mouse, you can wake it up by clicking the key.（scrolling the trackball or moving the mouse will not wake up the mouse） How to wake up the mouse? 1.In wireless connection mode, the M505 mouse enters sleep mode 30 minutes after you last used the mouse. 2.lf you need to use the mouse, you can wake it up by clicking the key.（scrolling the trackball or moving the mouse will not wake up the mouse） How to reprogram mouse buttons? 1. All keys are not programmable. 2. Forward/Backward buttons are not compatible with MAC OS. How to reprogram mouse buttons? 1. All keys are not programmable. 2. Forward/Backward buttons are not compatible with MAC OS. How to adjust the DPI of the mouse? 1.The mouse has 5 DPI settings, 200/400/800//1200/1600, which can be easily switched by clicking the DPI button below the Bottom of the Mouse. 2.The blue DPI switch indicator is in the slit of the scroll wheel. How to adjust the DPI of the mouse? 1.The mouse has 5 DPI settings, 200/400/800//1200/1600, which can be easily switched by clicking the DPI button below the Bottom of the Mouse. 2.The blue DPI switch indicator is in the slit of the scroll wheel. Where is the 2.4G USB Receiver for wireless connection? The 2.4G USB Receiver is stored at the bottom of the mouse. Where is the 2.4G USB Receiver for wireless connection? The 2.4G USB Receiver is stored at the bottom of the mouse.

Review: Somebody's Finally Reviving The Logitech Marble FX, Best Trackball Shape Ever! - These are beautiful. They are reminiscent of Logitech's well known "Trackman Marble FX" which was discontinued many years-ago. Those were the best shape a trackball was ever made in, but they just stopped making them. They were so good I never forgot, and when I was recently looking at trackballs, I was happy to find this, and a few others, using a very similar shape to the Marble FX. So I ordered one. It was a wired version, and aggressively low-priced. While Logitech knows it's finger-controlled trackballs are popular, after having some sort of patent dispute and needing to discontinue the lovely "Marble FX," they continue to this day to make the smaller, less lovely "Trackman Marble." This is NOT the same as the "Marble FX," which is no longer made. But it's worth noting, I went through at least four "Trackman Marbles" over the years, wearing them out using them every day, and they always cost about thirty dollars - Logitech has now raised the price of that mediocre offering ... the Trackman Marble, to one hundred and eighty dollars USD. Wow!! ... while some innovative companies are actually daring to imitate the beautiful but patent-issue-plagued original "Marble FX" for the first time! I counted three different products, branded differently with some small differences, but they are all basically the same, all clones of a Marble FX. How refreshing! I bought a second one! Before the first one even arrived! The second one I bought is this one, with wireless features. I have it plugged into USB on a Mac Studio desktop* so it will stay charged up, and when my trackpad nags me about charging it, I can just swap that USB cable out of the front of the trackball. Working great so far. It does seem to have a "give me a second" wake-up feature, probably owing to the fact it's wireless so it goes to sleep after awhile. So I just shake it around and it wakes up. This trackball has five resolutions accessible by pressing a button on the bottom of it, and I found a middle value to work well for me. It paired easily with bluetooth. In the hand, it feels comfortable and reminds me of the "correct" trackball design I missed so much from years past! The ball (I got a red one) is big enough and there are buttons galore. I have only used right-click, left-click and there's a nice wheel to scroll. There's a half dozen more button-programmable things I haven't fiddled with. But when I rest my hand on it, my thumb appropriately falls onto the left-click button (which is important!), which has the largest button-surface of all the buttons on that side. It's easy, comfortable and starting to feel like home. *I'm using this with a Mac Studio. It's plug and play, and is working wirelessly with the dongle never removed from its underside (it's using Bluetooth, while that dongle is for 2.4 GHz direct wireless to USB). I have a trackpad AND trackball (a great way to roll) and having just left-click and right-click buttons working out of the box, and the scroll wheel too, is all I'm going to need. I can't comment on usability of the other buttons with a Mac. Maybe I'll try that later. I'll keep both of them. These are WELL WORTH the price (currently under $50 USD). Note from my experience using both this and one of the others that look just like it, they appear to be nearly identical, and there was at least one more I didn't buy which looked also nearly identical. So if you're going for the shape and feel, you'll probably be quite happy with any of them. This one is darker black than the other and has a more velvety surface texture. I'd recommend buying one of these even if you weren't intending to replace your mouse or trackball right now; you'll be glad you did. I had a long history of mouse-caused-wrist-pain which was relieved when I switched to using a finger-manipulated-trackball. I can't recommend this product highly enough! :)
Review: This Trackball is Just as Advertised - And Thankfully So - This is a nice trackball. I actually already have a ProtoArc EM01 which replaced my dead Logitch Ergo, which in turn replaced my legendary Trackman Marble. So I was looking for a return of the finger trackball for gaming and possibly an improvement in dexterity and comfort. As is, this overall unit is quite large. Not the biggest thing I've ever seen but noticably bigger than my ProtoArc. The ball itself is huge and very easy to operate. The buttons, like all of them, are also large. In the case of the left click button, possibly too large, as it is very easy to click it when really trying to shift hand positions or to move the base anywhere - like to a different angle. It could be that I've gotten so used to a thumb trackball and the tilt angle I have with it that I need to re-learn this type though, so I don't hold that against it. The scroll wheel is in, what I consider, to be a very convenient place. It's also large though so I have to tuck my thumb more than I would prefer. But when used, it is very positive feeling and precise, so again I don't hold the dimensions against it. The base has a very nice finish and looks high quality, as does the entire unit. I just got it yesterday so I haven't actually needed to clean it, but it seems like that will be extremely simple. Setup on Windows 11 was easy once I got the hang of how the mode switch button at the bottom and the bluetooth search actually worked. You have to switch to the bluetooth channel by pressing but then press and hold until the light blinks. But you have to remember to start the press and hold on the setting before the one you're trying to get to so that the final position when you let go will be the one you're trying to reach. Otherwise, you go one past where you intend. This is a moot point with USB, which is the first position. I've been having problems with bluetooth being very jumpy and intermittent, and that continued with this unit. But that is definitely down to my bluetooth performance specifically because like with the ProtoArc, once I went to the USB dongle performance was glass smooth and quick. DPI switches are also easy and the difference is very noticeable. The button for this is also at the bottom to the left of the mode switch button. Much too easrly to discuss durability but given the construction and finish of the unit I would expect it to last at least as long as a competing Logitech. No rainbow brite LEDs on it either, but who really needs all that when everything else in your system probably already operates as a midnight sun? The charging LED behind the scroll wheel is enough. All told, I gave this five stars. It's exactly what I expected it and hoped for it to be. A great return to the marble way of life.

## Features

- Ergonomic Design for Comfort: Nulea M505 trackball mouse is designed to fit your hand greatly, reducing muscle stress and promoting comfort. The 44mm index finger trackball enhances cursor control and reduces arm stiffness, making it an effective solution for treating wrist pain.
- Precise Tracking with Adjustable DPI: With 5 different DPI modes, the trackball mouse allows you to adjust cursor movement for superior accuracy and control. You can easily switch between DPI modes using the button located at the bottom of the mouse.
- Great for Small Work Spaces: The smooth index finger trackball allows you to navigate your cursor on practically any surface, making it ideal for small workspaces. Whether you're working at a cluttered desk or on a couch or bed, Nulea trackball mouse can boost your efficiency.
- Long-Lasting Battery: Our ergonomic mouse features a built-in rechargeable battery that lasts up to 45 days on a single full charge. You can use our mouse for extended periods without worrying about charging it.
- RGB Effect：The index finger trackball mouse comes equipped with an RGB effect that adds a pop of color to your setup. You can turn the light off or on by Long pressing the left and right button for three seconds.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BR7KX422 |
| Additional Features | Ergonomic Design |
| Antenna Location | Office |
| Are Batteries Included | Yes |
| Are Batteries Required | Yes |
| Battery Average Life | 90 days |
| Best Sellers Rank | #513 in Computer Mice |
| Brand | Nulea |
| Button Quantity | 6 |
| Color | RGB Backlight |
| Compatible Devices | Latop, PC,Computer |
| Connectivity Technology | Bluetooth, USB |
| Customer Reviews | 4.5 out of 5 stars 708 Reviews |
| Enclosure Material | Plastic |
| Hand Orientation | Right |
| Hardware Platform | Laptop, PC |
| Manufacturer | Nulea |
| Mfr Part Number | M505B |
| Model Name | M505B |
| Model Number | M505B |
| Mouse Maximum Sensitivity | 1600 Dots per Inch |
| Movement Detection | Trackball |
| Movement Detection Technology | Trackball |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Number of Buttons | 6 |
| Operating System | Android,Windows |
| Power Source | Battery Powered |
| Range | 10.0 meters |
| Special Feature | Ergonomic Design |
| Style Name | Modern |
| Unit Count | 1.0 Count |
| Warranty Description | 1 year |

## Product Details

- **Brand:** Nulea
- **Color:** RGB Backlight
- **Connectivity Technology:** Bluetooth, USB
- **Movement Detection Technology:** Trackball
- **Special Feature:** Ergonomic Design

## Images

![M505B Wireless Trackball Mouse, Rechargeable Ergonomic RGB Rollerball Mouse, Easy Index Finger Control with 5 Adjustable DPI, 3 Device Connection for PC, Laptop, iPad, Mac, Windows, Android - Image 1](https://m.media-amazon.com/images/I/71vgsPNzNYL.jpg)
![M505B Wireless Trackball Mouse, Rechargeable Ergonomic RGB Rollerball Mouse, Easy Index Finger Control with 5 Adjustable DPI, 3 Device Connection for PC, Laptop, iPad, Mac, Windows, Android - Image 2](https://m.media-amazon.com/images/I/81TPkBQwbDL.jpg)
![M505B Wireless Trackball Mouse, Rechargeable Ergonomic RGB Rollerball Mouse, Easy Index Finger Control with 5 Adjustable DPI, 3 Device Connection for PC, Laptop, iPad, Mac, Windows, Android - Image 3](https://m.media-amazon.com/images/I/81OFVf96HmL.jpg)
![M505B Wireless Trackball Mouse, Rechargeable Ergonomic RGB Rollerball Mouse, Easy Index Finger Control with 5 Adjustable DPI, 3 Device Connection for PC, Laptop, iPad, Mac, Windows, Android - Image 4](https://m.media-amazon.com/images/I/81UygaZfVWL.jpg)
![M505B Wireless Trackball Mouse, Rechargeable Ergonomic RGB Rollerball Mouse, Easy Index Finger Control with 5 Adjustable DPI, 3 Device Connection for PC, Laptop, iPad, Mac, Windows, Android - Image 5](https://m.media-amazon.com/images/I/81S5pHG-DyL.jpg)

## Questions & Answers

**Q: How to charge the mouse and know its charging state?**
A: 1.Use the provided USB-C to USB-A charging cable to charge the mouse.The low battery and charging indicator is in the slit of the scroll wheel 2.The charging indicator shows red during charging and turns green when fully charged.

**Q: How to wake up the mouse?**
A: 1.In wireless connection mode, the M505 mouse enters sleep mode 30 minutes after you last used the mouse. 2.lf you need to use the mouse, you can wake it up by clicking the key.（scrolling the trackball or moving the mouse will not wake up the mouse）

**Q: How to reprogram mouse buttons?**
A: 1. All keys are not programmable. 2. Forward/Backward buttons are not compatible with MAC OS.

**Q: How to adjust the DPI of the mouse?**
A: 1.The mouse has 5 DPI settings, 200/400/800//1200/1600, which can be easily switched by clicking the DPI button below the Bottom of the Mouse. 2.The blue DPI switch indicator is in the slit of the scroll wheel.

**Q: Where is the 2.4G USB Receiver for wireless connection?**
A: The 2.4G USB Receiver is stored at the bottom of the mouse.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Somebody's Finally Reviving The Logitech Marble FX, Best Trackball Shape Ever!
*by M***O on October 5, 2025*

These are beautiful. They are reminiscent of Logitech's well known "Trackman Marble FX" which was discontinued many years-ago. Those were the best shape a trackball was ever made in, but they just stopped making them. They were so good I never forgot, and when I was recently looking at trackballs, I was happy to find this, and a few others, using a very similar shape to the Marble FX. So I ordered one. It was a wired version, and aggressively low-priced. While Logitech knows it's finger-controlled trackballs are popular, after having some sort of patent dispute and needing to discontinue the lovely "Marble FX," they continue to this day to make the smaller, less lovely "Trackman Marble." This is NOT the same as the "Marble FX," which is no longer made. But it's worth noting, I went through at least four "Trackman Marbles" over the years, wearing them out using them every day, and they always cost about thirty dollars - Logitech has now raised the price of that mediocre offering ... the Trackman Marble, to one hundred and eighty dollars USD. Wow!! ... while some innovative companies are actually daring to imitate the beautiful but patent-issue-plagued original "Marble FX" for the first time! I counted three different products, branded differently with some small differences, but they are all basically the same, all clones of a Marble FX. How refreshing! I bought a second one! Before the first one even arrived! The second one I bought is this one, with wireless features. I have it plugged into USB on a Mac Studio desktop* so it will stay charged up, and when my trackpad nags me about charging it, I can just swap that USB cable out of the front of the trackball. Working great so far. It does seem to have a "give me a second" wake-up feature, probably owing to the fact it's wireless so it goes to sleep after awhile. So I just shake it around and it wakes up. This trackball has five resolutions accessible by pressing a button on the bottom of it, and I found a middle value to work well for me. It paired easily with bluetooth. In the hand, it feels comfortable and reminds me of the "correct" trackball design I missed so much from years past! The ball (I got a red one) is big enough and there are buttons galore. I have only used right-click, left-click and there's a nice wheel to scroll. There's a half dozen more button-programmable things I haven't fiddled with. But when I rest my hand on it, my thumb appropriately falls onto the left-click button (which is important!), which has the largest button-surface of all the buttons on that side. It's easy, comfortable and starting to feel like home. *I'm using this with a Mac Studio. It's plug and play, and is working wirelessly with the dongle never removed from its underside (it's using Bluetooth, while that dongle is for 2.4 GHz direct wireless to USB). I have a trackpad AND trackball (a great way to roll) and having just left-click and right-click buttons working out of the box, and the scroll wheel too, is all I'm going to need. I can't comment on usability of the other buttons with a Mac. Maybe I'll try that later. I'll keep both of them. These are WELL WORTH the price (currently under $50 USD). Note from my experience using both this and one of the others that look just like it, they appear to be nearly identical, and there was at least one more I didn't buy which looked also nearly identical. So if you're going for the shape and feel, you'll probably be quite happy with any of them. This one is darker black than the other and has a more velvety surface texture. I'd recommend buying one of these even if you weren't intending to replace your mouse or trackball right now; you'll be glad you did. I had a long history of mouse-caused-wrist-pain which was relieved when I switched to using a finger-manipulated-trackball. I can't recommend this product highly enough! :)

### ⭐⭐⭐⭐⭐ This Trackball is Just as Advertised - And Thankfully So
*by O***H on May 14, 2026*

This is a nice trackball. I actually already have a ProtoArc EM01 which replaced my dead Logitch Ergo, which in turn replaced my legendary Trackman Marble. So I was looking for a return of the finger trackball for gaming and possibly an improvement in dexterity and comfort. As is, this overall unit is quite large. Not the biggest thing I've ever seen but noticably bigger than my ProtoArc. The ball itself is huge and very easy to operate. The buttons, like all of them, are also large. In the case of the left click button, possibly too large, as it is very easy to click it when really trying to shift hand positions or to move the base anywhere - like to a different angle. It could be that I've gotten so used to a thumb trackball and the tilt angle I have with it that I need to re-learn this type though, so I don't hold that against it. The scroll wheel is in, what I consider, to be a very convenient place. It's also large though so I have to tuck my thumb more than I would prefer. But when used, it is very positive feeling and precise, so again I don't hold the dimensions against it. The base has a very nice finish and looks high quality, as does the entire unit. I just got it yesterday so I haven't actually needed to clean it, but it seems like that will be extremely simple. Setup on Windows 11 was easy once I got the hang of how the mode switch button at the bottom and the bluetooth search actually worked. You have to switch to the bluetooth channel by pressing but then press and hold until the light blinks. But you have to remember to start the press and hold on the setting before the one you're trying to get to so that the final position when you let go will be the one you're trying to reach. Otherwise, you go one past where you intend. This is a moot point with USB, which is the first position. I've been having problems with bluetooth being very jumpy and intermittent, and that continued with this unit. But that is definitely down to my bluetooth performance specifically because like with the ProtoArc, once I went to the USB dongle performance was glass smooth and quick. DPI switches are also easy and the difference is very noticeable. The button for this is also at the bottom to the left of the mode switch button. Much too easrly to discuss durability but given the construction and finish of the unit I would expect it to last at least as long as a competing Logitech. No rainbow brite LEDs on it either, but who really needs all that when everything else in your system probably already operates as a midnight sun? The charging LED behind the scroll wheel is enough. All told, I gave this five stars. It's exactly what I expected it and hoped for it to be. A great return to the marble way of life.

### ⭐⭐⭐⭐⭐ The most comfortable trackball I have ever used
*by R***H on August 19, 2025*

I've been a trackball user for about 12 years at this point, but the only trackballs I've used have been thumb trackballs. I have had Logitech M570s, M575s, and a couple of MX Ergos. I decided to give a finger trackball a try and the Nulea M505 was reasonably priced for something I may or may not have liked. After I received the Nulea M505B, I had a few day adjustment period to not left click randomly, but by the end of the first day, I can say I immediately loved the design. It's incredibly comfortable, fits your hand well, and the large trackball is something I can say I enjoy a lot more than the typical thumb sized ones. It simply feels more intuitive and more natural to use a trackball this way. I ended up buying an additional one to have on hand for when this one dies and just in case I couldn't find a replacement of the same design. Functionally, you would think that the function of having your right click be on your ring finger be weird, but you adjust pretty fast. All the clicks are easy to register and I haven't had any issues there. Scrolling works well, and the middle click is just the right stiffness so it's easy to press but not accidentally when scrolling fast. The only negative thing I can say about this mouse is the device switching is on the bottom, and I switch between 3 different devices regularly while working from home so it gets somewhat annoying having to lift to switch connections. However, switching to a different device, whether it's the wireless, or one of the Bluetooth connections, it's fast. I have had zero issues when reconnecting to the previous devices and it's always been connected before I even set the mouse back down.

## Frequently Bought Together

- Nulea M505B Wireless Trackball Mouse, Rechargeable Ergonomic RGB Rollerball Mouse, Easy Index Finger Control with 5 Adjustable DPI, 3 Device Connection for PC, Laptop, iPad, Mac, Windows, Android
- Nulea Wireless Ergonomic Keyboard, Split Keyboard with Wrist Rest, USB-C Charging, 7-Color Backlight, Natural Typing, Bluetooth and USB Connectivity, Compatible with Windows/Mac
- Nulea Wireless Ergonomic Trackball Mouse, Rechargeable, Bluetooth Rollerball Mouse, 44mm Index Finger Trackball, 5 Adjustable DPI, Compatible with PC, Laptop, Mac

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-06-08*