Sport wireless waterproof Bluetooth headset/headphone/earphone. It is a wireless waterproof bluetooth headphones,Very good for Noise Cancelling. 
<br />Standard:Bluetooth CSR40.
<br />Mode:HSP/HFP/A2DP/AVRCP/DIV/APT-X
<br />Frequency Range:2.400-2.480GHz.
<br />Weight:16g
<br />Operating Range:up to 30 feet(10metres)
<br />Charge Voltage:3.7V
<br />Charging time:<2 hour
<br />Talking time:4 hours
<br />Mp3 playing time:Up to 5 hours.
<br />Standby time:up to 60 hours.
<br />Charge Voltage:3.7V