Specification: Brand: QKZ Model: DM9 Style: In-Ear Communication: Wired Connectors: 3.5mm Vocalism: Principle Dynamic Control Button: Yes Plug Type: Line Type Sensitivity: 94±2dB Frequency Response: Range 20-22000Hz Line Length: 1.2m Resistance: 16O With Microphone: Yes Frequency Response: 20-22K Hz Speaker Sensitivity: 94 at 1KHz Function: For Mobile Phone,Monitor Headphone,For Internet Bar,Common Headphone,for Video Game,HiFi Headphone,For iPod Supported Devices Xiaomi, Samsung Glaxy, Huawei, LG, Sony and Other android mobile phones iPhone & IOS devices Mp3 Mp4 players, tablets, PCs, all 3.5mm music players.