Grandey F012 Bluetooth Shower Best Waterproof Speaker XP7, Fully Submersible and Portable Design Play Wireless Music with Crisp Audio - Deep Bass Supports Wireless Music Streaming via New Bluetooth ISSC v3.0 Technology. Built-in charging Battery and Built-in high sensitivity Microphone, enjoying hand-free call. Unique water-proof design,Fully submersible(IPX7), using in bathroom, sand beach, swimming pool,car etc any where. Special suction cup design, could sucked on any flat surface including desk, wall, window. Adopt high quality audio decode chip ,let you experience perfect sound quality.