MORE COMFORTABLE ERGONOMICS - Specially designed for right-handed people, the mini-contoured shape fits your hands perfectly. The rubber scroll wheel keeps your hands from slipping while using the wireless mouse.Great value for money - Tested with over 5 million keystrokes, the computer mouse is extremely durable and has a long lifespan. 2.4G wireless technology provides a secure connection for a transmission range of 10m/40ft. **Please note: The USB receiver is stored on the bottom of the mouse. **ENERGY SAVING - The ergonomic wireless mouse will automatically shut down after 8 minutes of inactivity. The laptop mouse will turn off when the PC is turned off or the receiver is disconnected.Efficient work - 5 DPI level options, 1200/1600/2400, easily and freely change the cursor sensitivity of the wireless mouse, which can perfectly meet the needs of home and office, and greatly improve the efficiency by up to 120%. Plug and play, no drivers required.For precise cursor control, we use our intelligent TruWave technology on multiple surfaces. Perfectly compatible with Win 7/ 8/ 10/ XP, Vista 7/ 8/ Laptop, PC, Chromebook, Desktop, Computer. For Mac OS