Generic High-Definition Sports Wireless Bluetooth Headphones Sports Headset for Apple iPhone X / 8/8 Plus 4 4S 5S Samsung HTC Smartphone Frequency: 2.402 -- 2.480 GHz Bluetooth: Version V3.0 Class 2 Frequency response: 20Hz -- 20KHz Sensitivity: &lt;0.1% BER Compatible: You can pairing the headset with bluetooth tansmitter whch pairing password is "0000".such as cellphone/pc/pad.and the headset can compatible with iphone/ipad/ipod Perfect. Package: 1 x Bluetooth Headphone 1 x USB cable