ERGONOMIC DESIGN: Designed with palm, thumb and little finger rest, which it provides better support and keeps your hand in a natural position, effectively reduces the wrist strain and pain. TRIPLE CONNECTIVITY: With Dual Bluetooth modes and 2.4G wireless technology, the mouse connects up to 3 devices like Windows computer, MacBook and Android tablet at the same time.Just press one button, you can switch between three devices freely. RECHARGEABLE: Built-in rechargeable Li-battery, easily recharged through the included USB charging cable, no need to change the battery.This mouse will auto sleep after 15-20 minutes inactivity for power saving and could be waken up by any click. SIDE BUTTONS and NOISELESS CLICKING: Added next/previous buttons provide convenience when webpage browsing.Soft click, less noise, keep you stay focused on your work, no disturbing others. WIDELY COMPATIBLE : Works with Windows 8/7/10/XP/2000, Mac OS 10.10 or higher version (NOTE: The side forward/backward buttons are not available on MAC OS). Plug and play (The USB receiver is stored in the back of the mouse).