【Silent Click】: Silent clicking design for left and right button fits the circumstance for using TECKNET usb wireless mouse in public, such as library, dormitory, office and any other occasions where you do not want to disturb others. Make you concentrate on your work without disturbing others beside you. | 【Ergonomic Design】: The ergonomic design allows you to use TECKNET purple silent click mouse in a more comfortable way, thus reducing wrist fatigue caused by prolonged use. | 【6 Adjustable DPI】: TECKNET quiet click wireless mouse has 6 DPI adjustable levels 800/1200/1600/2400/3200/4000 for you to change the sensitivity depend on your activities. | 【Plug and Play】: Tiny USB receiver can plug conveniently into your computer's USB port and take up minimal space. No drivers need to be installed. 2.4GHz wireless transmission technology provides a powerful and reliable connection up to 49ft. | 【Long Battery Life】: TECKNET pc wireless mouse has a 24-month battery life. It takes only 2 AAA Battery(NOT Included)and will turn to sleep mode in 10mins of inactivity for energy saving. Allow you to focus on your work without the hassle of changing batteries. | 【Wide Compatibility】: Well compatible with Windows11/10/8/XP, Vista8/7 and Linux etc. Fits for desktop, laptop, PC, Macbook and other devices. | 【36 MONTHS SUPPORT】: If you encounter any problems in using TECKNET wireless mouse for laptop, please feel free to contact our professional customer service team, enjoying TECKNET 36 Months Warranty (Registered Only)