Rugged Radios Expand to 4 Place - AlphaBass Carbon Fiber Headsets - Mono - Behind The Head RS003C0116 In all cases the coupler

In all cases the coupler can be rotated independently of the hose end

Adjuster includes one LH and one RH jam nut

3-Bolt Triangular Flange

5" rear-end with the much stronger Ford 9" style

Rugged Radios Expand to 4 Place - AlphaBass Carbon Fiber Headsets - Mono - Behind The Head RS003C0116 In all cases the couplerExpand your two person intercom system to 4 persons with this AlphaBass Headset expansion pack. The AlphaBass Headset is fully featured, top of the line headset for music lovers, and features high fidelity true stereo, amplified, full range bass speakers that pack an incredible audio performance that you can feel! Available for STX Stereo and Mono Intercoms. Advanced Features that set the AlphaBass Headset apart: HIGH FIDELITY TRUE STEREO (with Stereo