Description‎:‎ The smart Headset is a bluetooth 4.0  Import CSR Chip Stereo Earphone  that can be used anywhere all over the world‎.‎ DSP Noise Cancelling‎,‎180°  Rotation design   ‎,‎Sticking in a HiFi And HD MIC and you gain an amazing communication device that works like a cell phone on your Earphone‎.‎ With Wireless 10M Bluetooth Distrance Transfer and light weight‎,‎ you can wear this Earphone comfortablely anytime‎,‎ such as running‎,‎ climbing‎.‎Driving‎,‎Travling etc‎.‎ What‎'‎s more‎,‎ with bluetooth V4.0‎,‎ it is the best companion for Earphone‎.‎ When you have calls‎,‎ it will remind you at Voice and you can receive calls by Earphone‎.‎ So you will never miss them‎!‎ You can call directly by using the smart Bluetooth Earphone which has the built‎-in MIC and speaker‎.‎Specifications‎:‎ Model Name‎:‎ V8‎.‎ Style‎:‎ Ear Hook Wireless Headset‎.‎ Colors‎:‎ Black‎,‎ Gold‎.‎ Perfect fit‎,‎ precise sound‎.‎ Frequency Range‎:‎ 20‎-24000HZ‎.‎ Products Impedance‎:‎ 16Ω ohms‎.‎ Headphone charger‎:‎ Micro USB port‎.‎ Sensitivity‎:‎123db±3db‎.‎ Working time‎:‎ 5‎-6 Hours‎.‎ Standby time‎:‎120 hours‎.‎ Charging time‎:‎ 1.5‎-2 hours‎.‎ Communication‎:‎ Wireless Bluetooth‎.‎ Connectors‎:‎Bluetooth 4.0 Stereo‎.‎ Function‎:‎ Smart DSP CVC6.0 Noise Cancelling‎.‎ Net weight‎:‎ 8g