7 Tone Sound Loud Car Siren Vehicle Horn Hooter/Ambulance/Siren/Traffic Sound with Black Remote Controller 12V 100W (1PC Remote Controller) AUTO_bestsellers_Oct2025 Plug-and-PlayEASY OPERATION: USB-powered design works

Plug-and-PlayEASY OPERATION: USB-powered design works instantly with car ignitionno need setup

Math calculator holder is light and compact

IP67 Waterproof Design: Designed to withstand harsh weather conditions

Made of high density

which can effectively reduce fingerprint marks

7 Tone Sound Loud Car Siren Vehicle Horn Hooter/Ambulance/Siren/Traffic Sound with Black Remote Controller 12V 100W (1PC Remote Controller) AUTO_bestsellers_Oct2025 Plug-and-PlayEASY OPERATION: USB-powered design works7 Tone Sound Loud Car Siren Vehicle Horn Hooter Ambulance Siren Traffic Sound with Black Remote Controller 12V 100W (1PC Remote Controller) Specifications: Material: Plastic Speaker Color: Black Remote Control Color: Black Working Voltage: 12V Power: 100 W Sound level: 120 150 dB Instructions: Power siren with 12V or car battery. Button A: Tone 1 Button B: Tone 2, press to stop the siren. Button C: Tone 3. Button D: 4 Different Tones, press to change