Blueant F4 Stereo Bluetooth Interphone Motorcycle Kit (Helmet not included) Talk wirelessly on your cell phone Talk to another Interphone user within 1640 feet, using the intercom feature Hear turn by turn GPS direction information from your Bluetooth-enabled GPS device (works with "motorcycle-friendly" GPS devices only) Listen to stereo music from any music player that supports the Bluetooth A2DP profile Wireless, water-resistant, windproof and world class, the removable and rechargeable