Tajima Helmet Box 3730 with Fan, White, HA30BFW, Headlight Unit Power Supply. Hybrid type that can use either Tajima 3730 or AA batteries. Prevents

Dedicated box for Tajima helmets [Sefumet] Box with ventilation fan Hybrid power supply that can use both Tajima Charge 3730 and AA batteries Prevents humidity from building up inside the helmet, preventing stuffiness *Sold separately