This complete offroad flex boom helmet kit features Rugged Radios Dura-Link Sealed Connector, Alpha Audio helmet speakers and a dynamic noise canceling mic for best audio performance, as well as a 3.5mm input port for music cable or ear buds. Helmet speakers are easy to install with peal and stick 3M adhesive backings. Alpha Audio speakers produce highs and lows for quality sound during music playback. Perfect for listening to your favorite tracks while talking to your buddies. The Dura-Link Seal is a molded design featured on all Rugged Radios off road helmet kits to seal the connection between the intercom cable and helmet kit plug. This design is perfect for offroad race teams. The Dura-Link Seal protects the connection contacts from water, mud, and dirt which can affect audio performance. The Dura-Link Seal works with current Rugged Radios off road intercom cables, and is now featured on all Rugged Radios off road helmet kits. Alpha Audio SpeakersDynamic Noise-Cancelling MicrophoneHelmet Kit featuring Helmet Speakers, Microphone and 3.5mm JackDura-Link Seal Protects Connector Contacts from Water, Mud and Dirt3.5mm Jack For Input or Output! Listening To Music via MP3 Player or Cell Phone or Plug in Ear Buds Rugged Radios HK-OFSP Rugged Radios HK-OFSP-3.5 Rugged Radios HK-OFSP-AA Rugged Radios HK-OFSP-3.5-AA Buying Options Buying Options Buying Options Add to Cart Customer Reviews 4.7 out of 5 stars 21 5.0 out of 5 stars 11 4.5 out of 5 stars 112 3.9 out of 5 stars 14 Price — no data — no data — no data $105.49$105.49 Speakers Clear Hear Audio Speakers Clear Hear Audio Speakers Alpha Audio Speakers Alpha Audio Speakers Dura-Link Seal ✓ ✓ ✓ ✓ 3.5mm Jack no data ✓ no data ✓ Microphone Dynamic Noise Cancelling Mic Dynamic Noise Cancelling Mic Dynamic Noise Cancelling Mic Dynamic Noise Cancelling Mic