(1) Bluetooth protocol: version 1.2
(2) 2.4 GHz wireless Bluetooth frequency.
(3) Bluetooth range: 10meters.
(4) Using the hands free Bluetooth profile, it is compatible with Audio Gateway (In/Out) for all Bluetooth enabled PCs, PDAs, and Cell phones.
(5) Crystal clear sound quality and weighs only 16g.(approx.).
(6) Voice-dial function with mute button.
(7) Li-Ion battery power ensures more than 4 hours speaking and 120 hours standby time.