High performance optical sensor ensures excellent precision and control. Plug and Play. Comes with a receiver and the operating distance up to 10 meters. It has two eyes, that are used as the left click and right click buttons, and a scroll button for its nose. Insert the receiver into computer USB port, turn on the power switch on the back of the mouse, take note if the receiver has been contacted with USB interface in good condition, then wait for about 5 seconds to work. Description: Very cute and functional wireless mouse for you! Use rechargeable lithium-ion battery makes it more convenient(Battery not included). 2.4GHz wireless technology ensures high transmission speed and 10m operating distance. Don't miss it! Specification: Interface type: USB interface Color include: black, pink Key: 3 Product size: 92*70*29mm Product weight: 100g Package includes: 1pc * mouse(Battery not included) Note: 1. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.