The Big Turtle Shell Ultra is a large, waterproof, rugged Bluetooth speaker that is loud, sounds amazing, and is unlike any other. It features advanced Bluetooth 4.2 technology and delivers 360° omnidirectional stereo sound. Your mind is already made up, you want one but wait... there’s more! It also has a built-in lantern for mood lighting, power bank for charging devices, and the ability to wirelessly pair multiple Big Turtle Shell Ultra’s together! Each speaker is powered by an 8,800mAh battery that lasts up to 12 hours in a single charge. Rugged, waterproof, and tough, you can now have your own compact equipment wherever you go.