Show yourself and let them hear you when you're often on the road by bike in the evening. with this bike bell you can warn everyone that you're coming. it has a lamp too which improves your vision in the dark.the hornit is very easy to mount and suitable for all bikes. you can always charge it with a usb cable.features- with led light- 5 sound effects: piercing mode; 120db, hight pitch; 112db, whistle; 114db, beep beep; 95db, car horn mode; 101db.- 6 light modes: full beam; 250 lumens, flash; 60 lumens, low beam; 100 lumens, breathe; 80-20 lumens, eco; 30 lumens, heartbeat; 100 lumens.- remote control on handlebar (no need to take hands off handlebars)- compatible with all bikes- charged via usbproduct information - product: hornit lite db120- material: plastic - dimensions: l 10 x w 5 x h 3.8 cm- weight: 73 grams- colour: black - packaging: gift packaging- packaging dimensions: l 13 x w 10.5 x h 5.4 cm- packaging weight: 141 grams- brand: hornit