Super Bright & 9 Light Modes - Strong Light Medium Light-Low Light-Strobe SOS-Auxiliary Light-Main and Auxiliary Light-Off/Red Light Red Strobe Light illuminate up to 150ft away with the 220 lumen LEDs. USB Rechargeable - Compatible with any USB port and provide up to 30 hours' continuous lighting on a single charge. Support 5V DC adapter. (Micro USB charging cable is included, but adapter is not included). Lightweight & Comfortable - Weighting only 1.87 oz, with sweat proof elastic headband and 45° adjustable angle, this may be the most comfortable headlamp for both adults and kids. IPX4 Waterproof - Heavy rain or splashing water are no longer a concern while using it for any outdoor activities. Ultra Solid Built Quality - This durable headlamp is made to last, polyethylene coating provide reliable protection for droping and scratching in all direction.