【USB Rechargeable】The LED headlamp can be charged via a USB cable. With only 2-4 hours of charging, the headlight provides up to 6-8 hours of constant light. When the headlamp is charging, the charging indicator lights up red. Green light means fully charged. 【90° Adjustable & Comfortable Headband】The LED headlamp can be adjusted up and down 90°, allowing you to adjust the angle according to your needs. The headband is made of comfortable, breathable, and stretchy material for a comfortable fit. Adjustable headband, suitable for people with different head circumferences, suitable for adults and children. 【IPX5 Waterproof & 4 Modes】IPX5 waterproof, the headlamp is durable and safe to use in rain or snow. The headlamp has 4 modes, main light on, side light on, all lights on and strobe (SOS). 【With Red Warning Light】When the lights are on, the red taillight will light up at the same time. The headlamp has a COB main light and 2 LED running lights. The super bright COB main light provides