This Power Pack is a battery that is intended to be used with the Funkey, Rotortech, Radix, Edge Night Blades. Without power packs, the blades will not fit into any blade grip!
Features: - Power packs fit directly onto the root of each blade via a keyed fit. - Auto on-off determined by rotor RPM. Stationary = off, rotating = on. - Long lighting duration
Includes: - One pair of Power Pack blade batteries.