24 Hours Long Playtime - The portable Bluetooth speaker delivers up to 24 hours of lasting playtime on a single charge (Playtime varies according to sound volume and audio content). Built-in large-capacity rechargeable batteries can also double as a power bank, allowing you to charge your phones or other devices, making it a great outdoor speaker. 24 Hours Long Playtime - The portable Bluetooth speaker delivers up to 24 hours of lasting playtime on a single charge (Playtime varies according to sound volume and audio content). Built-in large-capacity rechargeable batteries can also double as a power bank, allowing you to charge your phones or other devices, making it a great outdoor speaker. IPX7 Fearless Immersion - The internal components are made of the latest high-density materials, IPX7 waterproof speaker is fully waterproof and survives being fully submerged in 3.3 feet of water for up to 30 minutes. Durable and Waterproof Bluetooth speaker rugged enough to han