Goliton&reg; Universal Music sports Wireless Stereo Bluetooth Headset Headphone for Cell Phone PC -Black Bluetooth version: Version2.0/Class2 Switch from music to calls with the press of a button Enjoy up to approximately 6 hours music listening, 7 hours talk or 6 days standby time from a single charge Operating Distance: 10 Meters Typical Standby Time: 160 hours