ProtoArc Wireless Trackball Mouse, EM04 Ergonomic Bluetooth Rollerball Rechargeable Computer Laptop Thumb Control Mouse

4G Ergonomic Thumb Trackball: Equipped with a smooth and precise trackball, move your cursor with your thumb movement instead of moving your wrist and arm. It will effectively reduce fatigue and strain compatible with your wrist and arm. Not only work on flat surfaces, but also on your leg, sofa and other surfaces as well, especially in the narrow space, such as the messy desktop Bluetooth / 2. Wireless Connection： and . This trackball mouse has triple connection modes. You can control three devices at the same time, switch freely between Android, tablet and Mac with just one button. Compatible with Windows, Android, Mac Laptop Desktop etc Rechargeable / Adjustable : The Bluetooth Trackball Mouse built-in 450mAh lithium battery. No need to change batteries. Each full charge can stand by compatible with 1 month. Please remember to turn it off if you do not use it compatible with a long time. 5 levels (200/400/800/1200/1600 ) allows you to change the cursor sensitivity easily compatible with more precise tracking Quiet Clicking: Smooth frosted surface and quiet clicks can bring a better user experience and free your worry about bothering others and keep you stay focused while working. Note: it will enter auto sleep mode if you don/t use it compatible with a few minutes to save battery and click it, the mouse will enter working mode again