SPH10 - Bluetooth® Stereo Headset and Intercom. The SPH10 Bluetooth 3.0 stereo headset brings you four-way intercom conversations featuring a 900-meter (980 yards) range and hands-free calling. Easy to Use with Superior Audio Quality - For both incoming and outgoing audio. Extremely versatile with a long range, the SPH10 Bluetooth 3.0 stereo headset brings your favorite tunes, GPS navigation, four-way intercom conversations featuring a 900-meter (980 yards) range, and hands-free calling to a wide range of outdoor sports and motorsports activities. Ergonomically Friendly Control - All the right features for on-the-go travels.