Sony - SRS-X11 Bluetooth Speaker Colors:White This case features GE lighting

This case features GE lighting all around the edges to brighten your mug up wherever you are at the push of a button

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more muscle

The Cascade series will keep you powered up when you need it most

And finally

Sony - SRS-X11 Bluetooth Speaker Colors:White This case features GE lightingOverview Size defying sound with 10 Watts of digital amplification, Single speaker w dual passive radiators for big sound, Speaker Add function (Stereo or Double Modes), Bluetooth audio streaming with SBC support. Add a second speaker for full stereo sound pairing one SRS X11 to another SRS X11 speaker via Bluetooth connectivity. Highlights Convenient One touch listening technology, Enjoy up to 12 hours of battery life with a single charge, Easily