ProtoArc EM03 Wireless Bluetooth Trackball Mouse, Ergonomic RGB Rollerball Rechargeable for Computer, Laptop, 3 Device Connection & Index Finger Control for iPad, Mac, Windows - Graphite

ERGONOMIC INDEX FINGER TRACKBALL: Equipped with a 44mm trackball, move your cursor with one finger movement instead of moving your wrist and arm. It will effectively reduce fatigue and strain for your wrist and arm. Not only work on flat surfaces, but also on your leg, sofa and other surfaces as well, especially on the narrow space, such as the messy desktop

BLUETOOTH & 2.4G WIRELESS CONNECTION：PLUG and PLAY. 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 OS PC Laptop Desktop etc

4 RGB LIGHTING MODE: You can adjust 4 RGB color effects by one button. Rainbow Streaming Light(Default), Rainbow Breathing Light, Neon, Color Mixing Breathing Light. NOTE: The RGB backlit also can be turned off by clicking the light switch button, which can save battery power for the mouse

RECHARGEABLE & ADJUSTABLE DPI: The Bluetooth RGB Trackball Mouse built-in 930mAh lithium battery. No need to change batteries. It can last 1 month per one full recharge with the lights off. Please remember to turn it off if you do not use it for a long time. 5 DPI levels (200/400/800/1200/1600 DPI) allows you to change the cursor sensitivity easily for 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. Please note that this is an index finger trackball. If you have not used this type of mouse before, please do not purchase it as you may not be accustomed to it