-- The SMH5 provides two-way intercom functionality that keeps you connected to your riding companion for conversations and music sharing through the crystal-clear Bluetooth\u00AE stereo headset \n-- The SMH5-FM adds an integrated FM tuner, delivering crystal-clear FM radio reception \n-- SMH5 intercom up to 400 meters / 430 yards, SMH5-FM intercom up to 700 meters / 760 yards \n-- The Jog Dial and large button make for an intuitive user interface that lets you cycle through all device functions \n-- Bluetooth 3.0 technology delivers GPS directions and provides the capability to listen to and share music when paired with a MP3 player or smartphone \n-- Crystal-clear natural sound that gets an automatic boost in noisy environments, while Advanced Noise Control\u2122 technology cuts down on background noise for both incoming and outgoing audio \n-- The Bluetooth music playback control features play, pause, track forward, and track back functions, and each audio source has its own adjus.