Altec Lansing iMW375 Solo Jacket Bluetooth Speaker, Blue Pairing: Bluetooth Stereo Sync with Voice Confirmation Speaker Features: Audio Line Input, USB Chargeable, and Hands Free Speaker phone Drivers: Single 1.75" Neodymium Estimated Charge Time: 3-4 Hours - 6 Hours Battery Life IP67 Waterproof, Sandproof, Everything Proof, Floats in Water