The only thing better than rippin’ down your favorite trail, hitting the climbs, or simply enjoying the mountain is doing it with your favorite music. The COROS EOSS audio platform allows you to stream audio while still being aware of the trail, and the natural sounds of the world around you. COROS SafeSound Mountain bike helmets offer a unique blend of safety, premium sound quality, and visibility. Our Impact Detection system adds layer of safety that will automatically notify up to 3 emergency contacts of your GPS coordinates, and provides a map pin of your location in the event of an impact to your helmet. Everything you need on the trail to ride Safe & Sound.


Ear Opening Sound System (EOSS)

We identified an already innovative idea, as an area of much needed improvement. With numerous comprehensive tests in our lab, we engineered a unique technology that optimizes a perfect blend of sound quality, with maintaining full environmental awareness.

Fit and Structure

Our SafeSound Adjustable Fit System secures the helmet by requiring minor adjustments. We even dialed-in on the improvement of the helmet strap by introducing a comfortable, yet effective material for the chin-strap. All supported by updated tri-glide sliders to hold both the helmet, and EOSS in place throughout the duration of your ride.

LED Tail Light

The positioning of our LED tail light ensures complete and direct visibility to others on the trail. With three different light modes: on/off – you have full control over your visibility.

Shape and Design

We placed ample research and development into our shape and design of SafeSound - Mountain. Our premium EPS impact foam enhances the overall effectiveness of the helmet experience. While the reinforced polycarbonate shell, along with the EPS impact foam, provides an extended coverage on the sides and back of the head.

Smart Remote

Our flexible handle-bar mounted cradle ensures optimal placement to minimalize distractions while riding. Giving you complete control over your audio and call functions while shredding through trails.

SOS Emergency Alert

Our new lab results are in and the SOS Emergency Alert feature is better than ever. It ensures that where ever you are, we got your back covered.

SafeSound will detect an impact and automatically send an exact mapping of your location, to a list of emergency contacts within the COROS App. At the same time, the LED tail light will begin flashing S.O.S in Morse code for anyone nearby to identify.

  • Premium EPS impact foam with a reinforced polycarbonate shell
  • 17 air vents for maximum cool air ventilation
  • SOS Emergency Alert
  • Ear Opening Sound System (EOSS)
  • LED tail light for full visibility
  • Fully adjustable protective visor
  • SafeSound Adjustable Fit System to securely fit the helmet
  • Up to 10 hours battery life
  • Wind-resistant microphone
  • IPX5 rating - rain, water and sweat resistant
Material Premium EPS impact foam with a reinforced polycarbonate shell
Padding Hot-press lining + EVA padding
Ventilation 17 air vents for maximum cool air ventilation
Visor Fully adjustable protective visor
Light LED taillight
Audio System Ear Opening Sound System
SOS Emergency Alert ☑️
Smart Remote ☑️
Microphone Latest wind-resistant mic
Battery Up to 10 hours
Water Resistance IPX5 - rain, water, and sweat resistant
Compatibility Bluetooth 4.2
Helmet Size M (55-59cm), L (58-62cm)
Helmet Weight M (320g), L (340g)