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OontZ Ultra SUP Paddleboard by Cambridge SoundWorks is a powerful portable bluetooth speaker. With a built-in speaker it’s the ideal water sport accessory for your paddleboard surfboard kayak or boat. This wireless speaker packs a powerful punch with astonishing crystal-clear sound that is distortion-free even at maximum volume. This party speaker is ultra-lightweight and portable and it has an incredible 100-foot Bluetooth wireless range. Moreover our Ultra wireless Bluetooth speakers are IPX7 certified which means they are waterproof and can be submerged in water for up to three feet. So bring your music on and off the water! Ultra Bluetooth speakers also have a built-in rechargeable battery that provides up to 20 hours of playtime on a single charge allowing you to listen to music for longer periods of time. Oontz Ultra speakers are the stylish accessory for you. Choose this classic SUP blue speaker that suits you!