Color: black Sound emitted (approx): 90dB Clamp diameter: 20mm Item size: 52 * 69 * 52mm Powered By: 2x AAA Batteries ( NOT included) A Loud Siren to draw peoples attention on street . Keep your kids from danger by warning or noticing others. With Loud Siren Sound . Easy to be fixed on the bicycle. Universal fits for most of the bikes.

Estimate Shipping Time: 2-3 days