100% Brand New and High Quality
Fits for your MP3, phone and other music device.
Volume controller make you use easily.
With microphone, make telephone calls at anytime
Comfortable and convenient
Compatible: for iPhone, MP3, Phone, other Music Device
Earphone diameter: 3.7cm
Jack-plug diameter: 3.5mm
Cable length: 1.2m
Earphone impedance: 32Ω±15%
Frequency response range: 20-20Khz
1 * Helmet Earphone