SMART HJC21B Intercom System Category_Bearing Tools which means it is free

which means it is free of phthalates

"Rider/Passenger" intercom via Bluetooth (if passenger has compatible system)

this is a good start but useless as you cannot read peak voltage output

Outstanding grip and linear traction let you unleash the full power of your machine for a level of stability and response rarely seen in a Motocross tyre

9% of germs

SMART HJC21B Intercom System Category_Bearing Tools which means it is freeThe SMART HJC 21B is the 2nd Generation Standard Bluetooth Communication System model that supports 21B compatible HJC helmets, with structural interfaces that users can easily mount on HJC helmets. Based on the BT 5. 1 low power system, the 21B offers Bluetooth 4 way intercom functionality, with over 22 hours of talk time. The enhanced sound provides users with an HD speaker, to enrich mid to low pitched sounds. Bluetooth 5. 1 intercom up to 4