2BOOM Aqua Jam Portable Bluetooth Wireless Water Resistant Shower Speaker with Suction Cup Black When you feel like accompanying your shower singing, the black Aqua Jam Bluetooth Shower Speaker from 2BOOM is there. The suction cup makes it easy to stick to the wall so you don't have to take up space where your shower caddy or soap might sit. Don't worry about water getting in--its rubberized exterior is showerproof.