he Boom! Audio SPH10 Half-Helmet Headset features a long-range Bluetooth 3.0 Intercom designed specifically for riding and other outdoor sports activities. The one-piece SPH10 headset allows you to call hands-free on your Bluetooth mobile phone, listen to stereo music or voice instructions of GPS navigations by Bluetooth wirelessly, and have intercom conversations in full duplex with your passenger and/or fellow riders. The SPH10 Bluetooth 3.0 stereo headset brings your favorite tunes, GPS navigation, four-way intercom conversations, and hands-free calling to any type of motorcycle