New, unused, and free shipping (simple packaging, mail delivery). Price not negotiable. −Product Features− ・Waterproof, allowing for full use even in rainy weather. ・1000 lumens of brightness, sufficient to be noticed by cars. ・USB rechargeable with a lithium-ion battery that allows for up to 10 hours of continuous use; the remaining battery life can be easily checked with the indicator. ・Perfect for commuting to work or school. ※Applicable handlebar diameter: 20~30mm Bicycle light, rechargeable USB, waterproof, high brightness, 2200mAh headlight, 1000LM, 4-stage lighting.