... mobilephone bluetooth earphone 1,verson:2.0 2,CE,Rohs 3, noisy cancelling 4,Radio Frequency Range:2402-2480MH mobilephone bluetooth ... 1+EDR2.Radio Frequency Range:2402-2480MH3.Transmission Power:Bluetooth Power Class 24.Receiver Sensitity:-80Dbm(PER1%)5. ... temperature:-10-50C,Humidity 95%Package:49*59*38cm100pcs/ctnNW/GW:13kg/14kg1 pc/color box noisy cancelling mobilephone bluetooth earphone