The Surf Sound Waterproof and Wireless Stereo Speaker is a 2-in-1 wonder. Enjoy Waterproof Bluetooth speaker and telephone handset capabilities with this versatile unit. Use it as a wireless speaker to play your favorite songs or use it as a phone and take calls" Built-in Bluetooth 2.1 technology will allow you to wirelessly connect your smartphone, MP3 player or tablet and play music or enjoy hands-free calls. Best of all, its Waterproof" It"s easy to use and easy to control –it"s awesome" Once your Bluetooth-enabled device is connected to the Surf Sound, you"ll be able to control the audio with the push button controls on the front of the unit. Lightweight, portable with a carry-handle and Marine Grade IP-47 construction standards will ensure you enjoy hassle-free and worry-free sounds by the pool, at the beach or even in the shower. Charge the device via the included charging cable or power by 4 x "AA" batteries (not included).