Rear Seat Expansion Kit with Helmet Kits or Headsets Select Helmet Kit or Headset:Ultimate Headset - Over the Head • 1/2" bolt and washer

• 1/2" bolt and washer

You will be able to mount these with ease

Performance High-Flow Piston

(3) Rubber Promoter Pen

Rear Seat Expansion Kit with Helmet Kits or Headsets Select Helmet Kit or Headset:Ultimate Headset - Over the Head • 1/2" bolt and washerExpand your two person intercom system to 4 persons with these expansion packs. Available in headset and helmet kit options for STX Stereo and Mono Intercoms with 16' cables to reach the back seats. (see compatibility info below) AlphaBass Headset Features: TRUE Carbon fiber in AlphaBass models Leather ear seals Flex Boom Mic M101 Red dynamic noise cancelling mic Easy to use volume and bass controlUltimate Mono and STX Headset Features: Carbon Fiber