Bluetooth:V4.0 CSR
Wireless and wired headphone
Speaker:32O/30mm
Sensitivity:100dB/m wat1kHz
Frequency response:20Hz-20KHz
Rated input power:30mW
MIC:-58dB/75Hz-16KHz
Dimension:170*155*34mm
Weight:260g
Rechargeable 750mAh Li-polymer Battery
Talk time:upto 8 hours
Stand time:300 hours
Health elastic ABS flexible silicone head versatile design,can be directly applied to I-phone,IPOD,MP3,notebook,PC and other notebook audio-visual equipment.
Tongue wireless Bluetooth SD Card headphone New NK-898BT