Triggerable Audio Player with 4 Input Channels, Programmable 4 Button Triggered MP3 Player for Wall Mount Speaker

1. 4 trigger inputs available and triggered by negative pulse/GND (low level signal).2. Equipped with a high quality audio decoder chip that is able to decode MP3 and WAV audio formats.3. Built-in a 8MB flash memory by default, which is able to store total of 8 minutes long MP3 files of 128Kbps.4. Supports max. 32GB micro-SD card.5. Load audio files to the internal flash memory easily through USB connection to computer.It'll be detected as a USB flash drive on computer. No need any program/software.Supports multiple functions/trigger modes.The function/trigger mode of each input can be set individually through a configuration file.Can be controlled by buttons, switches or relays.Built-in 10Watts class D amplifier for a great sound output.Adjustable sound volume through the small blue potentiometer.Wide power input(9-24V DC) and stable performance.Industrial grade design and strong anti-jamming capability.Working voltage: DC 9V-24VWorking current: ≥1000mAStandby current: ≤10mAPower Consumption: ≤10WFlash memory size: 8MBAudio format: MP3/WAVColor: As ShownMaterial: Plastic+MetalPackage Contents:1 x Triggerable Audio PlayerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.