Banana Boat Pool Sound System Banana Boat Pool Sound System is a completely wireless, floating, waterproof sound system with Bluetooth 3.0 Technology. Speaker unit has Up/Down Volume controls and LED illumination. The Speaker Unit auto-pairs with any Apple or Bluetooth Version 3.0 device. The Speaker Unit has a line-of-sight outdoor range of up to 150 feet. The indoor range is up to approximately 60 feet. Rechargeable Li-Ion battery included. Meets IPX7 water intrusion rating (1meter for 30 minutes).