The Coleman Aktiv Sounds CBT25 delivers up to 6 hours of your favorite tunes and has a built-in lithium-ion rechargeable battery so you can continue the party after a quick charge! With integrated TWS technology, you can use the speaker by itself or pair it to an additional speaker for a true surround sound experience. It features Bluetooth connectivity, and a 5 watt speaker driver for a superbly deep, robust, and amazing listening experience. Its rugged, water resistant exterior makes it durable and perfect for both indoor and outdoor settings!