7 Kinds of Alarm Sounds: The car alarm speaker can provide 7 kinds of loud and clear sounds, including sirens, fire alarms, ambulances, traffic sounds, police sounds, etc. Do not use the siren in an emergency. Instructions: Uses a siren powered by a 12V battery or car battery. The power supply voltage must match the working voltage and make sure the cables are connected correctly, otherwise it will not work properly. Loud and Clear: The sound of a car alarm is practical but loud and clear for its size. Do not use as a replacement for professional equipment alarms. HIGH QUALITY: The car alarm sound is made of high quality materials to ensure maximum strength and durability for long-term use Specifications: Material: Plastic Speaker Color: Black Working Voltage: 12V Power: 100W Sound Level: 120-150dB Note: Do not use as a replacement for professional equipment sirens. Will not be as loud as a normal police car siren. Do not use on public roads unless you are authorized and licensed to