--- product_id: 335138290 title: "ZK-502M Audio Mini 2.0 Stereo 50W+50W bluetooth Digital Amplifier Module 50W*2 AMP Amplificador Home Theater AUX USB" brand: "dollatek" price: "94.37 DT" currency: TND in_stock: true reviews_count: 13 category: "Dolla Tek" url: https://www.desertcart.tn/products/335138290-zk-502m-audio-mini-2-0-stereo-50w-50w-bluetooth store_origin: TN region: Tunisia --- # Bluetooth 5.0, 15m range 50W+50W stereo power 5-24V wide voltage input ZK-502M Audio Mini 2.0 Stereo 50W+50W bluetooth Digital Amplifier Module 50W*2 AMP Amplificador Home Theater AUX USB **Brand:** dollatek **Price:** 94.37 DT **Availability:** ✅ In Stock ## Summary > 🎧 Tiny amp, massive sound — power your vibe anywhere! ## Quick Answers - **What is this?** ZK-502M Audio Mini 2.0 Stereo 50W+50W bluetooth Digital Amplifier Module 50W*2 AMP Amplificador Home Theater AUX USB by dollatek - **How much does it cost?** 94.37 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/335138290-zk-502m-audio-mini-2-0-stereo-50w-50w-bluetooth) ## Best For - dollatek enthusiasts ## Why This Product - Trusted dollatek brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Protection:** Built-in safeguards against overheating, overcurrent, and short circuits keep your setup safe and reliable. - • **Compact Powerhouse:** Mini amp smaller than a card delivering a robust 50W per channel for immersive stereo sound. - • **Seamless Connectivity:** Effortlessly switch between USB, AUX, and Bluetooth 5.0 inputs for ultimate device compatibility. - • **Plug & Play Simplicity:** No drivers needed—connect directly to your PC or mobile device and start streaming instantly. - • **Versatile Speaker Support:** Compatible with 4-8Ω passive or active speakers, transforming your home theater or workspace audio experience. ## Overview The DollaTek ZK-502M is a compact, high-output Bluetooth digital amplifier module delivering 50W per channel stereo sound. Supporting USB, AUX, and Bluetooth 5.0 inputs, it offers versatile connectivity with plug-and-play ease. Its wide voltage range (5-24V) and built-in protection features make it a reliable choice for powering 4-8Ω speakers, perfect for upgrading home theater or desktop audio setups with professional-grade amplification in a pocket-sized form. ## Description Feature:Audio input: Bluetooth+AUX+USB flash disk+Computer USB(plug and play)Power Supply: DC5-24V(high power recommended high voltage)Adapter speaker: 10-100W; 4-8ΩChannels: Left and right stereo (stereo)Bluetooth version: 5.0(>15 meters without occlusion)Protection mechanism: Overheat, Overcurrent, short circuit protectionProduct size: 60x60x29mmPackage includes:1 x bluetooth Digital Amplifier Module kit Review: WOW, this little thing is awesome - I bought this as my son wanted some speakers for his PC (instead of using his headset all the time). I have loads of standard speakers from over the years so I wanted a small cheap amp to make him a little setup. This little amp is great, it comes requiring assembly, it's very easy to put together but makes you feel like you've built it. I powered it with an old 12v 1amp PSU and it works fine. I've had my phone Bluetoothed to it, easy to connect, sound was perfectly fine using a small set of satellite speakers. Just for a laugh I hooked up my floor standing Eltax speakers and surprisingly this little amp ran them, and sounded fantastic. I've ordered another to run the speakers in the bathroom meaning I can Bluetooth Alexa to the bathroom whilst I have a soak after a hard day's graft. Review: Very loud but not the best sound quality - No instructions but didn't take long to work it all out. The heatsink doesn't stick very well. Powering it with a 24v 5a LED brick (photo attached, cabling is short as it was just a test). Neighbours probably not impressed after I gave it a good slog with some drum n bass... But hey, that's life! Noticeably louder than my other supposed 100w amp but also noticeably not as smooth sound-wise. A bit too much midrange but if you got an EQ you'll be tweaking it. My Akai speakers aren't exactly Bose. There's some stupid voice when you switch it on. The blue light on mine constantly flashes (I was running it through the audio socket to my smartphone, rather than the bluetooth) and I would recommend you turn the volume to minimum when you power it on or off. I had a rather loud click through the speakers. For this price, it's hard to complain about the negatives. I'm going to give it full marks despite all the quirks listed above. Dollatek, take note: Get rid of that stupid voice on startup and the flashing blue light and you've got a cheap and very cheerful amplifier. ## Features - ZK-502M AMP is a mini Bluetooth AMP smaller than a card, its peak output power can reach 50W+50W, wide voltage input: 5-24V, you can easily buy a matching DC power supply. - This AMP protection board is printed with connection icons, allowing you to easily connect to each port without reading the manual. - This AMP has three input methods, their input sequence is USB mode/AUX mode/Bluetooth mode. - You can directly connect to the computer through the USB interface without a driver, you can also connect to the playback device through the AUX 3.5mm interface, and finally, you can also connect to the mobile phone through the Bluetooth mode. - There is no doubt that both can be connected. When you connect passive speakers, this AMP is a Bluetooth power amplifier; when you connect active speakers, this AMP is equivalent to a Bluetooth receiver. It should be noted that two types of speakers cannot be connected at the same time. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B095P1KS7V | | Best Sellers Rank | 16,968 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 57 in Hi-Fi Amplifiers | | Brand | DollaTek | | Country Of Origin | China | | Customer Reviews | 4.2 out of 5 stars 456 Reviews | | Manufacturer | DollaTek | | Manufacturer Part Number | ELA17579 | | Material | Cardboard | | Maximum Output Power | 50 watts | | Maximum Supply Voltage | 24 Volts (DC) | | Maximum supply voltage | 24 Volts (DC) | | Minimum Supply Voltage | 5 Volts | | Minimum supply voltage | 5 Volts | | Model Number | ZK 502M | | Mounting Type | Freestanding | | Mounting type | Freestanding | | Number of Channels | 2 | | Number of Items | 1 | | Output Power | 50 Watts | | Package Type Name | Product Kit Box" or "Equipment Kit Box | | Specification Met | Industry Standards and Safety Requirements | | Voltage | 24 Volts | ## Product Details - **Manufacturer:** DollaTek - **Maximum supply voltage:** 24 Volts (DC) - **Minimum supply voltage:** 5 Volts - **Mounting type:** Freestanding - **Voltage:** 24 Volts ## Images ![ZK-502M Audio Mini 2.0 Stereo 50W+50W bluetooth Digital Amplifier Module 50W*2 AMP Amplificador Home Theater AUX USB - Image 1](https://m.media-amazon.com/images/I/518r2Ebb2WS.jpg) ## Questions & Answers **Q: does the bluetooth pairing need a passcode? I'm wanting to connect to an Amazon Echo, and it won't connect if there's a passcode** A: No Passcode required on mine, i use for audio on my PC. **Q: Does that have audio interface built-in?** A: The listing claims "You can directly connect to the computer through the USB interface without a driver" so it should be able to function as an audio interface output without any extra kit needed. It has a DAC built in, which I have tested with bluetooth and USB drives and this works well. **Q: Hello! does it come with the power supply? is it suitable for the uk? i was told i need 240v to 12v. thanks!** A: To get the full 50+50 Watt output you will need a 24v 5A power supply. I used a SMPSU ( switched mode power supply unit) 12v 5A power supply which I got from Amazon. This gives a max output of 35+35W which is more than enough for my small living room and annoy the neighbours! N.B. you have to wire these PSU's yourself. **Q: Does the aux out disconnect the speakers** A: The AUX port is input and has to be plugged into the device you're playing music from. If you disconnect the aux cable, you enter bluetooth mode, it's a bit frustrating that you have this manual step every time you want to switch to bluetooth. Anyway, hope this helps ## Customer Reviews ### ⭐⭐⭐⭐⭐ WOW, this little thing is awesome *by S***R on 8 September 2022* I bought this as my son wanted some speakers for his PC (instead of using his headset all the time). I have loads of standard speakers from over the years so I wanted a small cheap amp to make him a little setup. This little amp is great, it comes requiring assembly, it's very easy to put together but makes you feel like you've built it. I powered it with an old 12v 1amp PSU and it works fine. I've had my phone Bluetoothed to it, easy to connect, sound was perfectly fine using a small set of satellite speakers. Just for a laugh I hooked up my floor standing Eltax speakers and surprisingly this little amp ran them, and sounded fantastic. I've ordered another to run the speakers in the bathroom meaning I can Bluetooth Alexa to the bathroom whilst I have a soak after a hard day's graft. ### ⭐⭐⭐⭐⭐ Very loud but not the best sound quality *by B***9 on 27 September 2024* No instructions but didn't take long to work it all out. The heatsink doesn't stick very well. Powering it with a 24v 5a LED brick (photo attached, cabling is short as it was just a test). Neighbours probably not impressed after I gave it a good slog with some drum n bass... But hey, that's life! Noticeably louder than my other supposed 100w amp but also noticeably not as smooth sound-wise. A bit too much midrange but if you got an EQ you'll be tweaking it. My Akai speakers aren't exactly Bose. There's some stupid voice when you switch it on. The blue light on mine constantly flashes (I was running it through the audio socket to my smartphone, rather than the bluetooth) and I would recommend you turn the volume to minimum when you power it on or off. I had a rather loud click through the speakers. For this price, it's hard to complain about the negatives. I'm going to give it full marks despite all the quirks listed above. Dollatek, take note: Get rid of that stupid voice on startup and the flashing blue light and you've got a cheap and very cheerful amplifier. ### ⭐⭐⭐⭐ better than youd think *by P***L on 11 August 2024* it cant really run on 5 volt very well without cutting out, maybe 5volt 2 amp but not really off a power bank but 9 volt or more works fine and its bluetooth works really well, soundwise its really not bad ## Frequently Bought Together - DollaTek ZK-502M Audio Mini 2.0 Stereo 50W+50W bluetooth Digital Amplifier Module 50W*2 AMP Amplificador Home Theater AUX USB - 24V Power Supply 24 Volt 3A AC Adapter 72W Charger 24V DC Transformer for LED Strip Light CCTV Camera Cisco Router - owootecc Zero Delay USB Encoder Arcade Game DIY Parts Kit for PC, Raspberry Pi 4/3 / 2/1 Model B with RetroPie,Arcade MAME JAMMA Game Project（2Pack） --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/335138290-zk-502m-audio-mini-2-0-stereo-50w-50w-bluetooth](https://www.desertcart.tn/products/335138290-zk-502m-audio-mini-2-0-stereo-50w-50w-bluetooth) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-04*