1.Color:Green/Red/Black/Blue2.Transmission range:10 m3.Channel:Mono4.Function:Supports music5.Basic functions: call、 * (on phone support)、 voice dialing * (on phone support)、 redial、 hang up、 volume control、 etc.6.Dimensions: 125 mm x137 mm x58.5 mmAudio Specifications:Frequency response: 10-20、000 Hz7.Brand:100% New Brand