Four switches control 4-tone of police whistle.
Another switch controls the flash modes of the police light.
6 LEDs red green led light with bike siren.
A loud siren to draw people's attention on street.
Keep your kid from danger by warning or noticing others.
A switch controls the flash modes give the effect of flicker.
Easy to be fixed on the bicycle.
Powered by two AA batteries (Not included).
Weight: 139.10 g
Size: 7711.5 cm
1 × JY-2510 Police Car Light Trumpet for Bicycle Propelling Aid Fricycle