BESTOPE® Waterproof Wireless Bluetooth Shower Speaker & Hands-Free Speakerphone Compatible with All Bluetooth Devices, Apple iPhone 5/5S/5C Siri and All Android Devices (Blue)
Really great product.  My kids love having their music in the shower.  However, battery life only last for one showering.  A real pain to have to take off the wall & charge between showerings.