Properties: Spokey RAINI bicycle lamp with horn: has 3 operating modes: emitting strong light with an output of 250 lumens, with a gentle emission of 125 lumens or pulsating light, is equipped with a horn, thanks to the built-in battery, it is charged via Micro USB. Technical data: Micro USB charging battery: 1200 mAh 3 lighting modes horn 140 dB speaker