A versatile and convenient way to add some personality to your vehicle. With this horn, you can easily upload up to four of your own custom sounds using the included USB interface. Simply connect the horn to your computer, select the sounds you want to use, and transfer them over. This horn is powered by a 12 Volt source, making it compatible with most vehicles. It is activated via a wireless 4 button remote, allowing you to easily switch between your custom sounds at any time. Whether you want to use it to play your favorite tunes, make a statement, or just add some fun to your daily commute, the Custom Sound Horn is sure to become a favorite accessory. With its compact size and easy installation, the Flyrontech Horn is a great addition to any vehicle. So why settle for the same old horn sound when you can have your own custom audio experience? Upgrade to The Flyrontech Horn today and add some personality to your ride. Features 1. Equipped with a 433MHz 4 key remote control. 2. Each key A, B, C, D from the remote control triggers an associated sound file 001.mp3-004.mp3 respectively. 3. Uses a high quality siren horn. Small size but loud volume. 4. Built-in a 4MB SPI flash memory. 5. Supports max. 32GB micro SD card on the internal sound board. 6. Plugs into your computer and drag sounds like any USB device. -No need any software/program. It'll be detected as a USB flash drive on computer. 7. Equipped with a class D 30 watts amplifier. 8. Adjustable sound volume through the blue potentionmeter on the internal sound board back cover needs to be opened. Technical Parameters 1. Working voltage: 12V DC 2. Working current: ≥2000mA 3. Standby current: ≤10mA 4. Power consumption: ≤30W 5. On-board flash memory size: 4MB 6. Audio format: MP3 7. Remote distance: ≤100m open area 8. Frequency response: 1000Hz-25KHz 9. Sound intensity: ≤110dB Size of MP3 Siren Horn Option With Remote Model A Option With Remote Model B Note: When the horn is powered on, there is about 5 seconds delay time, which was designed for paring a remote control during such a duration. After 5 seconds, the device will be into standby. Users can just ignore this, because the remote control has been already paired with the device at our factory.