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. This wireless outdoor intercom will take any of your extreme adventures to the next level.