Compatible with SoundLink Revolve and Revolve Plus.Your music. Ready to go. You don't want to think about charging your speaker. Now you don't have to. Set it on the cradle when you're home, and it'll charge. It can play music at the same time, and it ensures your speaker is ready to go whenever you are. Compatible with:- SoundLink Revolve- SoundLink Revolve PlusAvailable in Black.