The Skullcandy Riff On-Ear Bluetooth Headphones feature over twelve hours of playback time! When the Riff Bluetooth Headphones are not in use, they can be charged in ten minutes to provide two hours of playback time. The Riff Bluetooth Headphones feature built in music controls and microphone to control the volume, track, or answer an incoming call. The collapsible lightweight design make the Cassette perfect for any travel. Included is a 47 Micro USB Charging Cable.