Brookstone Floating Waterproof Bluetooth Speaker Fully waterproof (IPX7) and floatable--perfect for listening to music in the shower, bath, pool, or hot tub 2 full-range drivers and passive radiator for stereo sound with rich bass Built-in lithium-ion battery lasts up to 8 hours per charge Bluetooth 4.0 technology with 30-foot (9m) wireless range Includes a hook for easy hanging in the shower Fully waterproof (IPX7) and floatableperfect for listening to music in the shower, bath, pool, or hot tub 2 full-range drivers and passive radiator for stereo sound with rich bass Built-in lithium-ion battery lasts up to 8 hours per charge Bluetooth4.0 technology with 30-foot (9m) wireless range Includes a hook for easy hanging in the shower