Features: 1.The wireless mouse adopts 2.4G wireless frequency modulation technology, which has super anti-interference ability. 2.The mouse adopts an ergonomic shape design and is comfortable to hold, and the 4?way scroll wheel moves, making operation more flexible. 3.The mouse has 3 levels of adjustable resolution, up to 1600DPI, which can quickly realize cursor positioning. 4.Using the latest infrared light technology, it saves electricity and is energy-saving and environmentally friendly. 5.Equipped with a USB receiver, supports plug and play and can be used without cumbersome code matching. specification:Item Type: Wireless Mouse Wireless Transmission Distance: Approx. 10m / 32.8ft Wireless Carrier Frequency: 2402MHz-2480MHz Keystroke Force: 60-7010g Key Life Times: 3 million times Power Supply Mode: 2 x AAA batteries(not included) Adjustable Resolution: 3 levels and below Photoelectric Resolution: 1000/1200/1600DPI Wheel Direction: 4-way wheel Size: Approx. 111 x 68 x 37mm / 4.4 x 2.7 x 1.5in PackageList: 1 x Wireless Mouse 1 x USB Receiver