Specifications Feature Specification Model M109 Material ABS+TPE enameled wire Driver Diameter 14mm Cable Length 1.2m Weight 10g Audio Plug 3.5mm Frequency Response Range 20 - 20000Hz Sensitivity 98dB Impedance Range up to 32 Ω Resistance 32 Ω Vocalism Principle Dynamic Features With microphone, Sound Isolating, Waterproof, Control Button, Volume Control NFC Technology No Communication Wired Style Wired in-ear headphones Origin Mainland China