S2 quick start
Set up S2, charge by USB Type-C, fit the helmet, and test Bluetooth and lights.
Charge S2 with a USB Type-C cable before first use. Product data lists up to 18 hours in flashing light mode and up to 20 hours talk time with lights off.
Choose the right size before riding. S2 supports S, M, and L sizing, from 51 cm to 61 cm head circumference depending on size.
Adjust the rear fit system and chin pad so the helmet stays stable without wobbling.
Pair Bluetooth for audio and calls, then test the front light, taillight, turn signals, and remote control.