True Wireless Stereo OutdoorMaster Ski Helmet Headphones is equipped with optimally tuned 40mm drivers and CSR chip Bluetooth 5.2 for faster transmission, more stable connection, and better anti-interference, ensuring an wonderful shredding journey on the ski slope.

Glove-Friendly Sensitive Function Big Button, even wearing thick ski gloves, all functions are fully controlled. MZ04 Ski Helmet Headphones suitable for most electronic products such as cell phones, iPad, computers, etc., you can place the headsets into any audio-ready helmet, connect Bluetooth, and press buttons to play music, adjust the volume, or wake up the voice assistant, perfect for skiing, snowboarding, motorcycle,and off-road.

HD Audio Quality With HDR audio tech, OutdoorMaster MZ04 Wireless Ski Helmet Speakers automatically optimizes the lows and highs, can greatly restore the essence of music, providing you a premium acoustic experience. Built-in microphone allows you to get to jamming without missing anytime from the pow to answer missed calls, activate voice control and listen to music when skiing & riding.

Universal Helmet Compatibility Upgraded Thinner Wireless Ski Helmet Headset design, lightweight and portable, easy to install, compatible with most audio ready ski/snowboard helmets including Giro, Smith, Burton, K2, POC, Anon and even motorcycle helmets.

Rugged Design for All Conditions MZ04 wireless headphone works perfectly in temperatures of -20°C/45°C. More than 10 hrs of single playback on a full charge & 50 hrs standby time, covers you with music all day long. ( NOTE the working time varies based on different usage. )

Power saving mode When you don't need headphones outdoors, disconnect the Bluetooth and the headset will not operate and will auto-shutdown after 30 minutes, voice-play ‘Power off’.（No need to remove the headset from the helmet） When you need to use the headset again, turn on your phone's Bluetooth and long-pressing both headset buttons simultaneously for 5's to connect them.（Voice-play ‘Power on.’）