1>Item NO:2002 2>Version:Bluetooth1.1 3>Bluetooth Profiles Supported:Headset and Hands free Profiles 4>Range of Friequency:2.4GHz 5>Talk Time:3Hours 6>Standby Time:100Hours 7>Operating Distance:10M 8>Resolution:800DPI 9>Battery:2*AA Alkaline battery(durable for 1 month) 10>Noumal Charging Time:Within 3 Hours 11>Electron Accessory:USB Charger Cable,AC Adaptor,DC Charger 12>Size(mm):70*20*15 13>Weight(kg):0.03