DC 5V 6–35V 9-Channel MP3 Player Audio Module Automotive Voice Module Custom Voice Access Control and Security Alarm Speaker

Product Features:1. Two power supply voltage options are available, making it suitable for a wide range of power environments and ensuring high stability.2. Nine independent trigger interfaces allow for the one-to-one playback of nine different audio files.3. Audio files can be copied via direct USB connection, making it easy to update custom voice recordings with simple operation.4. Built-in 32Mbit storage supports MP3 and WAV formats, delivering clear and loud sound quality.5. Equipped with a 3W waterproof speaker, delivering powerful sound penetration, suitable for both indoor and outdoor use.Product Specifications:5–35V DC power supply9 one-to-one trigger interfaces, capable of triggering up to 9 tracksTriggered by brief contact between the signal line and the negative terminal of the power supply (low-level signal trigger)Supports MP3 and WAV decoding formats, with audio file sampling rates up to 48kHzCustom voice files can be updated via a USB cable connected to a computerBuilt-in 32Mbit (4MB) flash memory3W waterproof speaker with loud soundDIP switches for 8 trigger modesVolume control via potentiometerProduct Specifications:Operating voltage: DC 5V; DC 6–35V (optional)Operating current: 1A and aboveOutput power: 3W (MAX)Frequency response: 500Hz–16kHzStorage capacity: 4MB (32Mbits)Replacing custom audio:1. Open the casing2. Connect to a computer via a USB cable; it will be recognised as a USB drive3. Simply copy the required audio files into the driveNotes:1. You must use a data cable; some USB cables are power cables and cannot transfer data.2. Audio file names must consist of 5 digits, e.g. 00001.mp33. For one-to-one trigger playback, audio files must be stored in the root directoryProduct List:Voice Prompt Device *1