The XBi2-H is the latest bike-to-bike wireless intercom that is equipped with A2DP (Advanced Audio Distribution Profile) for wireless streaming of stereo music via Bluetooth technology. It allows simultaneous communications between three riders with up to 500 meters (1,640 feet) in optimum conditions. The XBi2-H will allow you to stream audio signal from any source that already comes equipped with Bluetooth such as mobile telephones, MP3, GPS and even an iPod/iPhone when hooked up to a Bluetooth adapter, eliminating the need for cable connections. Features Designed specifically for the new HJC IS-Max BT helmets Backwards compatible with current ChatterBox XBi2 model Communication between three riders up to 500 meters (1,640 feet) Bluetooth A2DP compatible with most mobile phones, MP3 players, GPS, and radar detectors Noise-suppression microphones Hi-fidelity stereo speakers Rechargeable/replaceable lithium polymer battery 6-8 hour talk time, 1-hour express charge Compact waterproof design HJC IS-Max BT helmet and ChatterBox Included XBi2-H Unit Microphone/Speakers Rechargeable/Replaceable Li-Poly Battery Mounting Hardware AC/DC Home Charger Bluetooth Adapters sold separately. Note The HJC Sy-Max 3 is not compatible with the Chatterbox Communication System.