·Sound : stereo
·Answering key
·Driver : Φ40mm
·Frequency : 20-20000 Hz
·Impedance : 32 Ohm
·Maximum power input : 100 mw
·Sensitivity : 102dB
·Plug : 3.5mm
·Length of cord :1.2m ±3%
Compatibility : All Mobiles &·Sound : stereo
·Answering key
·Driver : Φ40mm
·Frequency : 20-20000 Hz
·Impedance : 32 Ohm
·Maximum power input : 100 mw
·Sensitivity : 102dB
·Plug : 3.5mm
·Length of cord :1.2m ±3%
Compatibility : All Mobiles & Tablets