This electronic Vixen Horns has a total of 46 different sounds to choose from including 16 musical tunes 14 animal sounds 12 sirens and 4 special effects sounds. Featuring a loud weatherproof speaker volume control for sound level adjustments and a microphone that will converts the unit into an efficient public address system. Ideal for 12V vehicles. 46 Sounds Electronic Horn Voltage: DC 12 V 5 Different Modes 14 Animals/16 Music/12 Sirens/4 Special Sounds 15W Powerful Speaker PA System Microphone Included Unit connects to vehicle s 12V power source with the included cigarette lighter adapter