info at ctt-digital dot com 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