Power your music and keep your SoundLink Revolve or Revolve+ Bluetooth speaker charged and ready to go with the SoundLink revolve charging cradle. This convenient home base for your speaker allows you to play your music while the device charges; all you have to do is plug the wall-charger included with your speaker into the cradle. Keeps your speaker charged and ready to go works with SoundLink Revolve and Revolve+ Bluetooth speakers serves as a convenient home base for your speaker lets you play music while charging. What’s in the box: SoundLink Revolve Charging Cradle. Specifications - compatible with Bose SoundLink Revolve and Revolve+ Bluetooth speakers.