info at ctt-digital dot com 1) Technology: Bluetooth V1.2 compliant (compatible with Bluetooth 1.1) 2) Talk time: up to 5.5 hours 3) Standby time: up to 5 days 4) Broadcasting range of 10m (30 inches) 5) Weight: about 14g 6) Chipset: CSR 7) Radio performance: Class II 8) A wireless headset based on Bluetooth technology 9) Specially designed for different kinds of Bluetooth cell phones 10) Fashion type similar as international famous brand 11) Fair-sounding voice similar as classical soft music 12) Convenient hand-free service which makes your hands out of picking up phone while driving and working, out of radiant harm while phoning