Generic 6 LED Cycling Police Siren Electric Light Horn Bell with Four Switches Control 4-tone of Police Whistle ECO-FRIENDLY STUFF - Made of high quality ABS USER-FRIENDLY - Lightweight and impact resistant and easy to be fixed LED BELL HORN - Work with 4 loud siren sound modes by 6 Red LED lights flicker HIGH DECIBEL WARNING - Loud volume to keep your kids from danger by warning or noticing others by using a switch to controls the flash modes BATTERIES POWERED - 2 x AA batteries required( NOT INCLUDED)