GOLF Earphones M4 Pure Series
 
Compatibility:  iPhone / Samsung / Nokia /HTC and other devices with 3.5mm slot 
 
Technical Specifications
Frequency: 20Hz-20KHz
Cable length: 1250mm
Plug: 3.5mm
Impedance: 16Ω (+-15%)
Speaker sensitivity: 88db
Distortion rate: 5%