Bluetooth mesh intercom system, ergonomic design ideal for motorcycle helmets. - Model: 30K - Communication method: Bluetooth - Function: Mesh intercom - Quantity: Set of 2 - Included: Microphone, speakers, mounting accessories - Compatibility: Motorcycle helmets - Design: Ergonomic design Thank you for viewing. It was working normally until removed. One wired microphone is missing. The Velcro (hook-and-loop fastener) on the helmet side is not included as it was used. Please prepare a general-purpose one. All accessories, including the box, are shown in the photos. Please note that this is a used item and no claims or returns are accepted.