Clear audio thanks to the automatic levelling of loud and quiet voices, background noise suppression and isolation from vibrations. Convenient mute control and indicator light. - Pick-up range 4.5 m radius - Additional participants per mic: 6 - Recommended number of participants for Rally with 7 mics: 46 Dimensions: Height: 21 mm Width: 102 mm Depth: 102 mm Includes: 1 x Rally microphone Instruction manual Compatibility: Rally, Rally Plus, Rally Bar