IP5317L Features Designed for iPhone， Samsung， iPad， iPod & XiaoMi mobile phones High performance stereo headset Built-in microphone， perfect for hands-free Support volume control Ear bud made of metallic material TPE rubber cable Come with a earphone bag General Specs Brand & Model VYKON MK-3 Plug Type Φ3.5mm Stereo Frequency Response 2.4GHz Frequency Range 20 Hz - 20 000 Hz Sensitivity 96 - 99 dB Speaker Impedance  16 Ω ± 15% Rated Power 3mW Wire Diameter 4.0mm， Length 1.2M Driver Unit Diameter 8mm mylar speaker Microphone 4.5*2.2mm - 42db +/-3db Package Details Weight: 99.51 g Size: 17.5*10*4 cm