Descrition:-Colorful choice、 go with your dress-More comfortable to wear、 with memory foam tips-Built with high-performance speakers for extended frequency range Brand: ROCHE Style: in earphone Usage: MP3/Phone/Computer Receiver: ・10.0mm Impedance: 32 ・ Sensitivity: 105dB+/-3dB at 1KHz Frequency Response: 20-20kHz Cable Length: 1.2m Plug Type:Straight 3.5mm Material: Plastic Mic: YES Voice control: NO