LeadsaiL Wireless Computer Mouse, 2.4G Portable Slim Cordless Mouse Less Noise. LeadsaiL Wireless Computer Mouse, 2.4G Portable Slim Cordless Mouse Less Noise Effortless Wireless TransmissionMute quiet clicks allow you to focus on your job without having to worry about upsetting others. With a 50ft/15M transmission distance and high anti-interference performance, this 2.4GHz wireless mouse connection is powerful and reliable. Plug and play is supported through a Mini USB receiver (stored in the battery slot). 3 ADJUSTABLE DPI 800,1200,1600 DPI, alter the sensitivity of the cursor based on your activity. A Nano receiver is included with the computer mouse (stored in the back of the wireless mouse with magnetic force). There is no need for a driver, and you can simply plug and play the wireless mouse for laptop. Longer lifespanThe laptop mouse was put through a 5,000,000 keystroke test to ensure extra endurance. This cordless mouse has a power-saving switch on the rear. After 15 minutes of inactivity, it will go into sleep mode. To wake it up, press any button. Note: 1 AA battery is required for operation (not included). HAND-FEELING TO THE MAXIMUM For optimal comfort and support, the slim wireless mouse has a sweat-resistant and skin-friendly coating. Extra comfort is provided by the clever ring and small finger rest. The rubber-coated scroll wheel ensures that your hand does not slip while scrolling.