Complete set of interchangeable spare parts with the original components of the Bluetooth Intercom kits from the intuitive Interphone Avant tour Sport link urban range Compatible with all Motorcycle and scooter helmets thanks to its slim and reliable jack sockets, which fit Perfectly under foams 1 Micro boom, 1 Micro fine, 1 replacement foam for each microphone, 2 Velcro for Micro fine, 2 earbuds + 2 Velcro fasteners, 1 adhesive fixing plate, 1 screw attachment, 1 screw-on tool Compatible with all motorcycle and scooter helmets, thanks to its thin, reliable flat jacks, which fit perfectly under the foam.