An audio kit with an extra-long boom microphone designed for mounting unit on half helmets, ski-helmets and other non-motorcycle helmets. Comes with a cradle and all required mounting gear. Speakers not included. This kit is compatible with all half-helmets and features easy installation with instructions included. It is suitable for the following Cardo models: Freecom 4X, Freecom 2X, Freecom 4+, Freecom 2+, Freecom 1+, Freecom X-Line, Freecom Line, Freecom 4, Freecom 2, Freecom 1, and Spirit Line. The integrated boom microphone is flexible and extra long for a perfect fit.