Swordfish Waterproof, Portable Durable Bluetooth 4.0 Speaker, Wireless, Indoor & Outdoor, Shower Speaker, with Hook, Orange Ipx4 water resistant and dust / mild shock protection New Bluetooth 4.0 technology - for crystal clear sound performance Easy to connect with Bluetooth speaker via NFC function for android NFC enabled device Built-in microphone for hands-free speaker phone calling Receives signal up to 33 feet