EcoXBT- Waterproof/Submersible/Shock Resistant BT Speaker/speakerphone - A one of a kind portable audio system that combines Bluetooth Lithium Battery and Waterproof technologies. The result is a shock resistant floating full range rechargeable wireless speaker system. Do everything from stream and play your music from your BT smartphone or audio device to answering your incoming calls over the built-in speakerphone. RED