Wireless remote control, one key to control the horn. Installation is simple and convenient! Simply connect the red wire to the 12v power supply (including the built-in fuse) and the black wire (or the negative pole of the battery) to ground. Key A: Prompt Tone 1; Key B: Prompt Tone 2, Press to Stop Whistle; Key C: Prompt Tone 3; Key D: 4 different prompt tones, press to change the prompt tone.
Press the button on the wireless remote control to change different notification sounds, including horn, firefighter, police car alarm, etc. Package Includes: 1 x Speaker, 1 x Remote Control, 1 x Bag of Installation Kit, 5 x Free Top - Quality Nylon Cable Ties, 1 x Free 1.5m Power Cord
The car siren is made of high-quality materials and the horn is sealed with plastic, which is waterproof and dustproof; the horn is designed with a wide square tube and has a wide sound transmission range. The wiring is simple, the supply voltage must match the working voltage and make sure the cable is connected correctly, otherwise it will not work normally. The mounting bracket is sturdy and easy to use.
Wider range of use! The wireless control horn is easy to use and does not need to be limited to the cab. If you need a louder sound, you can buy two products and install them together, so as to double the sound and have a stronger warning effect. The input voltage is 12V, which is suitable for most cars, SUVs, trucks, ships, etc.

Wireless 7 Sound Alarm Siren Horn with Remote

This 7 Sounds Police Alarm Siren Horn comes with a remote for convenient control. With 7 different sounds to choose from, it provides a variety of options for alerting others in emergency situations. Perfect for use in vehicles, it is a reliable and efficient safety measure.

wireless heavy sound horn brand new . with proper wiring

Wireless 7 Sound Alarm Siren Horn with Remote

Car Siren Electronic Speaker Siren With MIC 100Watt Houter