COMPETELY WATERPROOF - IP67 Excellent choice to use around pool, beach, bath, boat, car &golf cart and all water environments. It can be submersed in 3 feet of water, for 30 minutes, without issue. ( Note: The sound can't out when the speaker holes full of water, please pour out the water from the hole FLOATING DESIGN - Floating on the pool over 24 hours you can swimming and making the speaker follow you and play music just around you at the same time. Great for the bathroom, showers, pool, boat, beach, kayak, patio or anywhere else UNIQUE SOUND - This speaker has superb volume levels for a rich stereo sound in crisp high definition (Hi Def). Supplies studio quality at home, office, indoor & outdoor with a deep bass. New powerful sub woofer & loud crystal clear sound from a small circle. Interconnect Two Function - Interconnect Sync 2 units together, if you buy 2pcs, you can enjoy stereo sound LONG DISTANCES BLUETOOTH CONNECTION - This Pool Float Bluetooth Wireless Waterproof speaker lasts for up to 8 hours playing time. - And Maximum connection distance 100ft(Open Air Transmission Range). (Note: In the swimming pool, if both speaker and mobile in the water, then water may affect the quality and distance of transmitted signals, suggest put mobile on higher ground, keep clear between mobile and speaker for best Transmission.