alta wireless bluetooth helmet drop in headphones- hd speakers compatible with any audio ready ski/snowboard helmet - 3 button glove friendly controls with microphone for hands fre - Newegg.com
K-ROO Pouch (Universal Helmet Audio Pouch)
The Chips Ultra: True Wireless Snow Helmet Audio by Outdoor Tech® Design Lab — Kickstarter
Chips 3.0 Ski Helmet Headphones Bluetooth Helmet Speakers for Snowboard
Smith Aleck 006 Wireless Helmet Audio Kit | REI Co-op
Drop-In Ski and Snowboard Helmet Speakers – Dreamruns.com