*2.4G wireless transmission can reach 30m barrier-free distance. *Switch between 500/1000/1500/2000 DPI. *Multiple auto dormancy function, unplug receiver or shutdown or 8 minute later, etc, mouse can get into the deep dormancy quickly and save batteries well. *Built-in MINI receiver, convenient for carry. *Plug and play. *Wireless technology: 2.4GHz. *Wireless distance: 30m. *Mouse size: 123.5(L)x71(w)x39(H)±0.5mm. *Mouse button: 7(including DPI key). *Rated voltage/current: DC 1.5V/12mA. *Power supply mode: 1 AA battery(No.5 battery) Recommend using alkaline battery(Included). *Color: Black. *When first time use it, it require you to match code. 1. Press the scroll wheel as well as the right button no less than 3 seconds; 2. Then plug the receiver into your computer and end the code matching.