Handset for Iphone,Blackberry,Nokia;
Browse phonebook and use other functions while calling;
Receiver and microphone function;
Sidekey volume control( if you need max volume, you don't need to adjust the largest volume from mobile phone;
LED light, answering/ hanging up button;
1.Frequency:20-20000Hz
2.Sensitivity: 111dB±3%
3.Impedance: 150ohm
4.Speaker diameter: 38mm
5.Cord length:2m
6.Plugs type:Φ3.5 mm DC plug
7.supported adjust the mobile's volume
8.Dimension: 21*6*6.7 CM N.W.:416g
9.Color:(Blue, Red, purple, yellow, pink, green, orange, black, whiter, pearly white)