Kanen iP980 Stylish 3.5mm Jack High Fidelity Stereo Music Headset Headphone with Hands-free Microphone, comfortable and compact to wear. The built-in hands-free microphone makes you easy to answer or hang up the phone call. 40mm stereo Hi-Fi driver, brings you wonderful stereo music pleasure./ Features: * High quality and compact stereo music dynamic headphone * Built-in hands-free microphone, can answer or hang up the phone call *Adjustment size, can fit everyone * Driver unit: 40mm * Frequency response: 20Hz~2000kHz * Rated input power: 10mv * Sensitivity: 97+/-3dB * Impedance: 32 ohm * Mic dimension: 4.0 x 1.5mm * Mic sensitivity: -42dB+/-4dB * Cord length: 1.5mm+/-10% * Plug: 3.5mm gold-plated jack * Compatible with 3.5mm jack devices Package included: * 1 x Kanen iP980 headphone **THANK YOU FOR BUYING FROM US, FOR ANY QUESTION PLEASE FEEL FREE TO CONTACT US, WE WILL BE HAPPY TO ASSIST YOU.**