100% brand new and high quality.
Advanced Bluetooth technology eliminates the need for a separate receiver
Switchable DPI among 800/1000/1200/1600.
Built-in software solutions with Bluetooth human interface device and comply with the standard version of the Bluetooth SIG Bluetooth 2.0
Work with Windows XP, Vista OS and Win 7/8.
Sleep mode and On/Off switch for saving energy.
Power Supply: 2 pieces AAA alkaline batteries (Batteries are not included)
Frequency band: 2.4-2.4835GHz UNLICENSED ism Band.
Receiving sensitivity: -75bm(standard).
Wireless range up to 10 meters (3.3ft)
Operating temperature: -10~85 degree.
Workable environment: 0-55 degree.
Please Order a Bluetooth Dongle first if your computer without Bluetooth Function. (Bluetooth Dongle is not included)