High-quality dynamic 9mm speaker makes HD clear sound, with a super bass stereo 3D effect. Comfortable in-ear design with soft silicone rubber ear pads included that reduce outside noise Built-in Microphone and In-line control, perfect for you to make hands-free calls, play music and change songs. Imported TPE transparent cable with fragrance, avoids winding, environmental and durable Model: UiiSii HM7 Cable Length (m): 1.2m (Approx. 3.94 ft) Connectivity: Wired Frequency response: 20~20KHz Impedance: 16ohms Plug Type: 3.5mm,Full-sized Sensitivity: 90dB±3dB Application: Gaming,Running,Sport,Working Compatible with: Computer,iPhone,iPod,Mobile phone,MP3,PC,Portable Media Player