CAIRBULL Smart Bicycle Helmet with Turn Signal Stop Light Warning Light

Features:
In-mold construction with hard PC shell and EPS lining for impact resistance and protection.
20 LEDs increase visibility from 360 degrees, keeping you safe at night.
Turn signal lights and stop lights are easily controlled by the remote control.
23 air vents keep you cool and comfortable and reduce the weight of the helmet.
An adjustable dial system makes the helmet fits head circumference: 54-61cm (21.2-24).
Includes a helmet, charging cable, remote control, remote mount, rubber band, and user guide.