Vocalism Principle:Dynamic
<br />Function:For Mobile Phone,Sport,Microphone,Supports
<br />Connectors:None
<br />Line Length:0.6m
<br />Plug Type:Wireless
<br />Frequency Response Range:20-20000Hz
<br />Model Number:earphone headphone
<br />Resistance:32 
<br />Wireless Type:Bluetooth
<br />Work Time ( play / call ):3 - 4 hours ( the sound volume will affect the time)
<br />Compatible:For iphone samsung IOS Android phone
<br />Charging time:about 2 hours
<br />Type:bluetooth headset