Whistler BT2200 Bluetooth Headset for Open-Face Helmets Microphone provides unmatched noise cancellation and offers full duplex wireless intercom Easy installation via clip-on mounting system or double sided tape mount-fits to any helmet High quality, slim fit stereo speakers provide increased wireless clarity Kit includes waterproof module, stereo speakers, AC charger, microphone, clip mount and double-sided tape mount Intercom range up to 10 meters - range achieved in open road, low traffic conditions