Reebok-CCM wants to set the record straight on the performance of competing helmets and says that it has at least one helmet that performs significantly better at reducing rotationalacceleration than the RE-AKT.
One LED serves as a battery level indicator, one flashes yellow after moderate impacts and a third flashes red for severe blows. mc10 wasn't willing to share the exact hardware inside, but we know that it's got a rechargeable battery and has rotationalacceleration, multi-directional acceleration, impact location and impact duration.