Sharper Image Waterproof Floating Bluetooth Speaker, Rugged Design for Outdoors, Built-In Microphone (Black) The All-Terrain Speaker by Sharper Image is resilient, versatile, and nearly indestructible. A fully submersible Bluetooth speaker, it will continue to play music even after a 3-foot plunge into the pool. Whether you are soaking up the sun on the beach or taking it on a long and tough hike, this speakers sturdy, rugged design withstands falls, spills and dirt of all kinds, thanks to its dustproof design. Designed to float on the waters surface, it'san exciting new way to interact with your playlist and favorite artists. With a rechargeable battery and a built-in microphone, it can be used virtually anywhere for hours at a time. Built to last and stay dry, accident-prone is now accident-proof with the All-Terrain Speaker.