ERGONOMIC COMFORT HAND FEELINGThe newest ergonomic design in 2020! Fits the contour shape of the palm, are for maximum comfort and support. The thoughtful ring and little finger rest provide extra comfort. The sturdy scroll wheel with rubber makes sure that your hand will not slip when scrolling. IM ROVE WORKING EFFICIENCYWith 3 D I levels (1000-1200-1600), ASOI optical mouse enables you to adjust its sensitivity whenever you want. Its also constructed with 6 buttons with multifunctional functions. Added next/previous functionality buttons provide convenience when web page browsing; A useful computer mouse to improve productivity and efficiency in workplace. STABLE CONNECTION AND OWER EFFICIENT2.4GHz wireless technology and professional chip ensure longer working distance, reaching up to 50ft. This computer mouse will be in sleep mode in 8 minutes of inactivity. ress any button to wake it up. Note: powered by 2*AA battery (not included). lug and lay & SLEEK DESIGNTiny wireless receiver conveniently slots into your computer's USB port, no need to install drivers. Adopted with skin-friendly frosted material, characterized with O-shaped texture on its sides, ASOI asymmetric mouse is not only non-slip, anti-sweat and fingerprint resistant for comfortable use, but it also looks very chic and high-end on your desktop. WIDE COM ATIBILITY & MONEY BACK GUARANTEEWell compatible with Windows7/8/10/X , Vista7/8 and Linux etc. Fits for desktop, laptop, C, Macbook and other devices. Notice,the side buttons are not available for Mac OS30 days of money back and lifetime warranty with friendly customer service. If you ever have any issues with your ASOI mouse, simply contact us and we'll expedite you a new one absolutely free or refund your payment in full.