This is a high qualtiy super bass in-ear headphone with mic Brand: ROCHE Style: in earphone Usage: MP3/Phone/Computer Receiver: ¦µ10.0mm Impedance: 16 ¦¸ Sensitivity: 105dB+/-3dB at 1KHz Frequency Response: 20-20kHz Cable Length: 1.2m Plug Type:Straight 3.5mm Golden Material: ABS Mic: YES Voice control: YES Accessories: Clip、 Pouch、 Ear-hook、 Noise-isolating Plugs