Shiva Enterprises Sales 12V 50W Loud Car Warning Alarm Police Fire Siren 7 Tone. Car Speaker Grill

DURABLE QUALITY: This PA Mic Speaker System Emergency Sound Amplifier 7-Tones is made of high-grade materials that are both durable and long-lasting. The electric wiring system and microphone are both composed of top-notch build quality. UNIVERSAL SIREN COMPATIBILITY: This compact speaker is the perfect choice for vehicles of all sizes, including trucks, SUVs, sedans, compacts, ATVs, ambulances, fire, engineers, private vehicles, etc. 7 TONES: The 50W Car Siren Horn With Mic PA Speaker System Emergency Sound Amplifier has seven different tones from which to choose based on your application and needs. You have the option of using it as a fire alarm, ambulance, siren, etc. Installation: - Red wire connects to 12V power supply positive,black wire connects to 12V power supply negative. - Fix the screws is OK. Note: - The supply voltage should meet the operating voltage, or can not work properly. - The wiring should be correct, otherwise it does not work. - The speaker wire should be avoided a short circuit.