This LED light will attach to your key ring to help you find your way during the night and dark mornings. Re-charge via a USB port, computer, laptop, powerbank etc. Neat design: Styled just like a USB flash drive with a retractable USB plug. Features On/off switch, choice of three lighting modes full power of use the half power or flashing modes for extended battery use. Super bright and latest technology COB (chip on board) LED technology, provides up to 60 Lumens of light output. Durable ABS construction and a reassuring 3 Year manufacturers warranty is included. High performance and super long life built in 3.7V Li-Ion rechargeable battery. Retractable USB charging plug with LED charging indicator. !.