The Sena Bluetooth Audio Pack with Waterproof Housing for GoPro gives you the freedom to externally record audio with your GoPro HERO3, HERO3+, or HERO4 camera wirelessly using Bluetooth technology at distances up to 328'. This allows you to mount your GoPro camera in unique locations without the need for externally wired microphones to capture great audio. Internal stereo microphones built into the Bluetooth Audio Pack let you capture ambient sound, while using Bluetooth-capable headsets to simultaneously record voice-over tracks. By using one of Sena's Bluetooth audio devices with built-in intercom capabilities, the Bluetooth Audio Pack allows you to record the voices of everyone connected by intercom - great for group adventures. Included with the Pack are a 131' waterproof housing, skeleton backdoor, frame case, and a USB audio connector.