Product description Color: white, black, silver 1. [Dual mode version]: Bluetooth 5.0 / 2.4G wireless mouse, provides more convenience for people with a variety of devices. Automatic connection after switching between Bluetooth 5.0 and 2.4G USB wireless mode. Mouse batteries not included (2 AAA). 2. [ENERGY SAVING]: Our Bluetooth mouse has one that can be charged using a USB cable. The automatic sleep mode and the on / off switch save electricity. 3. [ULTRA-SLIM, PORTABLE DESIGN]: The portable mobile wireless Bluetooth mouse can be easily stowed in your laptop bag or bag, so you have it wherever you need it. Wonderful travel mouse, worth trying. With 3 adjustable DPI levels (1200-1400-1600 DPI) you can control the speed of the mouse freely. 4. [BIG COMPATIBILITY]: The Bluetooth 5.0 mode works with Windows 7 / Windows 8 / Windows 10 / Android / Mac OS systems. The 2.4G wireless mode works with any device with a USB interface, just plug it in and get started.