2 In 1 Outdoor Bicycle Cycling Bike Head LED Light & Horn Bell YH-0902 Bike Bicycle Electronic Horn Double speaker electronic circuit and lighting circuit centralized on a single circuit Can function as a bike horn or safety alarm bell Also can function as a light in the dark Unique design and nice appearance Extremely loud and clear sound Easy and safe to use when braking Easy to install on various bicycles Unique design and nice appearance Waterproof structure design Compatible with all bikes including road bikes Package includes: 1 x Bicycle LED Electronic Horn 1 x Horn Stand