Expand to 4 Place with STX STEREO Alpha Audio Helmet Kits 20 inch 35" Long the only Difference

35" Long the only Difference is the size of the Knurl Diameter and Pitch

Industry First Valvetronic Design

• Bluetooth music streaming

• Waterproof power connector

Expand to 4 Place with STX STEREO Alpha Audio Helmet Kits 20 inch 35" Long the only DifferenceExpand your two person STX STEREO intercom system to 4 persons with this Helmet Kit expansion pack. Experience high fidelity true stereo in comfort and performance with the STX Stereo Helmet Kit! This complete STX STEREO flex boom helmet kit features Rugged Radios Dura Link Sealed Connector, Clear Hear stereo speakers and dynamic noise canceling mic for the best audio performance. Features: High Fidelity true stereo Loud Alpha Audio Speakers Full Flex