In this category we have listed all the parts for an SMH5, where you need to kit out a second helmet or just need some spare parts.
The SMH5 series provides two-way intercom functionality that keeps you connected to your riding companion for conversations and music sharing through the crystal-clear bluetooth stereo headset. The SMH5-FM series, also offers integrated FM tuner, delivering crystal-clear FM Radio reception. Below is an american review of SMH5-FM. It's a bit lengthy and pricing is not relevant but rest of the review info gives a great introduction to the SMH5-FM.