BERG Toys Berg Kids Pedal Go Kart Siren with Microphone Berg kart siren is designed to help announce your little drivers arrival and clear the road so they can pass smoothly and safely Pedal car siren perfectly fits all Berg pedal go karts Racing go kart attachment features 3 different siren tones and a megaphone Enjoy 2 years out of box manufacturer warranty Toy accessory dimensions: 4 L x 3 W x 3 H inches / Weight: 2 pounds