15 Watts MP3 Speaker Board USB Recoble Sound Board Voice Module 6 Trier Input MP3 Amplifier Circuit Board for Speaker

Features1. Two versions (negative trier and positive trier) optional.2. 6 trier input ports available on the board.2. The function/trier mode of each input port can be set individually through a config file.3. Support 7 main trier modes and 5 aistant trier modes.4. Equped with a high quality audio that is able to decode MP3 and WAV audio formats.5. Built-in a 4Mbytes f memory by default, and supports max. 32GB micro SD card.6. Able to update audio files through the micro USB port based on PC like using a USB f drive.7. Built-in a mono 15 watts cla D amplifier and poible to connect with an audio output .8. 9-24V DC wide power input and stable performance.9. Poible to drive a max. 15 watts (8s) speaker.10. Adjustable sound volume through the potentiometer, and also poible to connect with external volume potentiometer.11. 5.08mm pitch terminal blocks can be soldered.12. Industriarade design and strong anti-jang capability.13. Size: 45mm x 45mmTechnical s1. Working voltage: 9-24V DC2. Working current: ≤2000mA3. Power Consumption: ≤15W4. F memory size: 4Mbytes5. Audio format: MP3 / WAVTrier Modes / Function Settings

Each of the s from “0”to “B”represents a corresponding trier mode, which can be set individually for each of the 6 trier input ports. See the details below.