QUICKLY CHARGEABLE TECH-- Its self-contained 300 mAh lithium battery can run up to 30 days for daily use and can last about 12 months in standby mode, and it only takes 1-2 hours to get itself fully charged, so you don't need to frequently charge it or replace its battery like other wireless mouse. ERGONOMIC COMFORT GRIP-- The newest ergonomic design in 2020! Unlike other integrated mice, our structure of left/right buttons is separated from the upper cover, which makes its click easier and more durable. There is also a thumb concave to reduce finger discomfort. These upgraded designs will deliver a comfortable hand feeling you never had before. ENJOY OVER 90% NOISE REDUCTION-- Whether you’re working or studying, VicTsing computer mouse will bring you a silent using environment. Its clicks are very quiet and soft. The scroll wheel is also silent, so you don't have to worry there will be noisy clicks to distract you or disturb others around you. IMPROVE WORKING EFFICIENCY-- With 5 DPI levels (800-1200-1600-2000-2400) , VicTsing optical mouse enables you to adjust its sensitivity whenever you want. It’s also constructed with 6 buttons with multifunctional functions. A useful computer mouse to improve productivity and efficiency in workplace. MODERN & SLEEK DESIGN-- Adopted with skin-friendly frosted material, characterized with Y-shaped texture on its sides, VicTsing 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.