2020 Upgrade Wireless Optical Pocket Pen Mouse with Stylus Function, Promi 2.4G USB Digital Optical Pen Mouse, Adjustable 800/1200/1600 DPI Ergonomic Mice for PC Laptop Notebook Computer Mac (Grey)

I have been adding accents to maps, with a Pages app, using only a track pad. This can get fatiguing, so I got this pen mouse to aid in the detailing work. At first I had problems because the pen would not hold its position when I was adjusting outlines or double clicking. I also had trouble holding onto the pen itself because my hands are dry. Found that I could actually do some pretty precise drawing and drafting with the following hacks:1. Using a pad of paper instead of the surface of my desk increases friction to stabilize clicking and scrolling.2. Put some duct tape on strategic spots to give me a firmer grip.Am now very satisfied with its function.Red pen came in the box labeled "blue." Odd.

Looks like a pen, but it's hard to move accurately enough on a mouse pad or any surface to sign your name or mouse over to a particular spot on the screen. The signature looks like spaghetti. The cursor keeps undershooting or overshooting where you need it to be. No amount of practice solved either problem. I've used pens. This is no pen.The product description says its good for presentations, but in PowerPoint the pen doesn't act like a clicker. Instead, holding it in your hand and clicking it opens the PowerPoint context sensitive menu, forcing you to look away from the audience, find a surface to use the pen, look at the screen while you use the optical pen as a mouse to move the cursor and overshoot the Next Slide menu option a couple of times before you can finally click it. I've used presentation clickers. This is not a presentation clicker.The pen stands up. As you're typing, you can move your hand off the keyboard to put your hand on it. But the optical pen just falls over with any feather-light touch. That means you have to keep taking your eyes off the screen to watch the pen so you can catch it properly. When you rest your hand on a regular mouse or a solid ergonomic mouse, the mouse supports your hand. That's what makes it possible to keep your eyes on the screen while you type and use a mouse. This pen doesn't support your hand, it requires your hand's support. You end up having to tense your shoulder and your arm to support the pen as you try to get the cursor to move to the spot you need it to. I've used lots of mice. This hardly operates as a mouse. And it's not ergonomic.

I really wanted to like it and tried to use it for a few hours. Good idea but not really functional so I'm returning1. The battery cover is almost impossible to get off. I struggled with it for a few minutes and almost gave up. Maybe if there was some kind of indentation or something but there's nothing to grab onto and it is very very tight.2. The item is so slick you can't grip it.3. Scroll doesn't work very well and the whole thing just seems slow.3. It just sits in the stand loosely so of course, if it falls over.....4. There is nothing ergonomic about it. I have severe arthritis in my hands and found this very difficult to hold and quite uncomfortable.

While this is not a replacement for your mouse/trackball. It is however a very kool toy. It's so much fun. Plug-n-Played perfectly in Android, and Win10. Wish it was bluetooth. Very good to draw with. Set to lowest DPI and in windows set to lower DPI. then you have super accuracy for fine drawing. I figured out that you can leave the pen in the holder and still use it. They stylus part works pretty good. Battery cover is a pain to get off. I had to use a butter knife to carefully slide it a bit then use my finger nail to open further. If this thing got damaged/stolen/etc, i would buy another one ASAP. I really like it. For only $19! Love the fact that it came with usb adapters. -Scott

EDIT: After rebooting my computer about 3x, the regular mouse button has started working again. So that was probably a windows/driver issue... but I've never had a regular mouse button stop working so this is still a concern.I've been using this now for a couple weeks, and it has greatly helped my tennis elbow which flares up whenever I use a regular mouse too much. However, since yesterday I cannot use the regular "click" button - it has no effect. Obviously without the ability to click on things this is unusable.Otherwise the pen mouse works pretty well and has helped some with my tennis elbow. Some things that could be improved:- The overall shape/construction is hard and unfriendly, something rounder with soft padding would be better ergonomically.- The on/off button is small and difficult to access. I like to turn it off every time I put it down so the laser will stop shining, so this is annoying.- The choice of 3 different DPI settings is good, but even the at the finest setting I find it difficult to hold the cursor location steady while performing a right-click. I've turned to using a keyboard shortcut to bring up context menus instead of using the mouse.

Good at helping relieve carpal tunnel. But annoying to go back and forth between mouse and keyboard.

I bought one last year for digitizing freehand. I am teaching my grandson and I bought this for him. He loves this pen and it is easy to use, he carries it in his pocket because he uses the soft tip for his smart phone. It takes some time to teach yourself to push the right buttons, but once you do you will use it everyday! Good value!