1) Bluetooth protocol: version 2.0 2) Frequency: 2.4 GHz 3) Bluetooth range: 10meters. 4) Net weight: 18g 5) Power supply Bluetooth headset BTH-066INTRODUCTIONThe Bluetooth Mini Phone is a handy handset that pairs up with your mobile, so that you can carry it around your neck on a convenient lanyard. When your mobile rings, you can answer the call by picking up the phone and pressing the call button. With crystal clear sound, cute looks and simple setup, the Bluetooth Mini Phone is the perfect antidote to having a piece of uncomfortable, unsightly plastic stuck to your head! Specification:1) Bluetooth protocol: version 2.0 2) Frequency: 2.4 GHz 3) Bluetooth range: 10meters. 4) Net weight: 18g5) Power supply:DC4.2V/120Ma 6) Working volt: 3.7V7)Battery:  rechargeable Li-Ion battery    Talking time:up to  5 hours    Standby time: up to 90 hours    Chargeing time: about 2 hours. 8) Color: Black,white,red.orange ect. Accessories: 1).USB charging line. 2).Lanyard 3).User guide

mobile phone bluetooth handset