Unisex Solar Power Smart Bluetooth Summer Cooling Fan Cycling Motorcycle Helmet Cap Comfortable Bluetooth Solar Power with Fan

Specification:
Name: Fan Helmet
Gender: unisex
Material: ABS, PC
Bluetooth: Bluetooth5.0
Battery: built-in rechargeable battery(Included)
Features: comfortable, with fan, Bluetooth, solar power
Size(free Size): 28cm x 23cm x 21cm/11.02″ x 9.06″ x 8.27″ (Approx.)
Head circumference: 55cm – 61cm/21.65″ – 24.02″ (Approx.)
Net weight: about 680g
Gross weight: about 1100g