※keys No.: 3
※switchable CPI among 800/1000/1200/1600
※work way : Bluetooth
※Power supply: 2 AAA alkaline battery
※Frequency band: 2.4 - 2.4835GHz unlicensed ISM band
※Receiving sensitivity: -75bm (standard)
※Operation distance: 10m
※Operating temperature: -10~85°C
※Work with Windows 98, ME, 2000, XP and Vista OS
※Workable environment: 0-55°C