22 channels of clear, crisp communication with easy button access. Up to a 20-mile range* (Based on clear Open Terrain.) Channel Scan automatically checks channels for activity. Hi/Lo power settings lets you adjust transmit power/conserve battery life. Silent Opertion turns off all tones for quiet operation. Call Alert notifies you of incoming calls from your group. Auto Squelch removes annoying background noise due to terrain/range conditions.