ERGONOMIC COMFORT AND HAND FEEL The newest ergonomic design in 2020! Fits the contour shape of your palm, for maximum comfort and support. The thoughtful ring and pinky finger rest provide extra comfort. The sturdy rubber scroll wheel ensures your hand won't slip when scrolling. IMPROVE WORK EFFICIENCY With 3 DPI levels (1000-1200-1600), the ASOI optical mouse can adjust its sensitivity as you wish. It is also designed with 6 buttons with multifunctional features. Added next/previous function buttons provide convenience when browsing web pages; A useful computer mouse to improve productivity and efficiency in the workplace. STABLE CONNECTION AND POWER EFFICIENT 2.4GHz wireless technology and professional chip ensure longer working distance, up to 15 meters. This computer mouse will go into sleep mode after 8 minutes of inactivity. Press any button to wake it up. Note: powered by 2*AA battery (not included). Plug and Play & SLEEK DESIGN Small wireless receiver that conveniently fits into your computer's USB port, no need to install drivers. Adopted with skin-friendly frosted material, characterized by O-shaped texture on the sides, the ASOI asymmetric mouse is not only non-slip, anti-sweat and fingerprint resistant for comfortable use, but it also looks very chic and exclusive on your desk. WIDE COMPATIBILITY & MONEY BACK GUARANTEE Well compatible with Windows7/8/10/X, Vista7/8 and Linux etc. Suitable for desktop computer, laptop, PC, Macbook and other devices. Please note that the side buttons are not available for Mac OS. 30-day money back and lifetime warranty with friendly customer service. If you ever have any problems with your ASOI mouse, please contact us and we will send you a new one completely free or refund your payment in full.