Ride Sync 2 Helmet Communicators The Mountain Lab RideSYNC2 is an easy-to-use helmet communications system for a rider and passenger or two riders to stay in touch while on the move. Riders can carry on a conversation, listen to the radio or integrate with their smartphone via Bluetooth with the push of a button. Smartphone integration allows the user to listen to music, make/receive calls, follow GPS navigation instructions and access their phone's voice command. The RideSYNC2 is sold as a pair of devices'one for each user. They can also be used on their own as a standalone device. Features 2 riders or rider-to-passenger intercom Smartphone integration Voice command GPS navigation Make and receive calls Listen to music FM radio Specs Bluetooth v5.2 QCC Chipset 2.4 GHz frequency Up to 800 m range 40 mm high-definition speakers CVC digital noise reduction Waterproof IP65 USB-C charging 650 mAh lithium battery Working time: 8.5 hours Standby time: 15 days Charging time: 2 hours Working temperature: -10˚C to 50˚C Included Two complete communication systems, each including: Communications device 2 quick-release helmet mount options: Clip to helmet and 3M adhesive patch 40 mm helmet speakers 2 microphones options: Boom (works with open face helmets) and Button USB-C charging cable Adhesive hook-and-loop patches Speaker adjustment shims