1、Rechargeable: Built in rechargeable battery, no need to replace the battery. The left and right keys are specially designed to be silent and do not disturb others. 2、Color Backlight: 7 different colors change randomly when in use, providing soothing lighting, creating a cool and unique ambience for work and play. 3、Widely Compatible: 2.4G Mouse compatible for Windows 2000, for XP, for WIN7, for WIN8, for WIN10, for Vista, suitable for home, office, travel, etc. 4、ABS Material: 2.4G wireless mouse adopts high quality sturdy ABS material, which is wear resistant and durable, and can be used for a long time. 5、Easy to Carry: Small in size and light in weight, it is very suitable for travel and can be easily put into a laptop bag, super space saving. Item Type: 2.4G Wireless Mouse Material: ABS Buil In Battery: Polymeric Substance Lithium Ion Battery Battery Capacity: 400mAh Connection Method: 2.4G DPI: 1600DPI Scope of Application: Computer 1 x 2.4G Wireless Mouse 1 x 2.4G Receiver 1 x Charging Cable