20W Voice MP3 Decoding Board with USB 8MB, Low board, B Format Supporting and External Warning Light Connection for Various Use Adjustable Control

Convenient File Management & Storage: Includes 4Mbit (8MByte) storage and USB connectivity for easy auditory file updates via computer, and adjustable voice auditory Decoding: Supports MP3 and format with up to 48KHz sampling rate, clear and crisp auditory playback for professional use Versatiled Output & Expandability: Integrated 20W Class D amplifier directly drives 4 8Ω speakers (5-20W), supports external 12V warning lights, and offering 8 triggering modes via DIP switching for diversed applications Wide Voltages Compatibility: The HL20F MP3 player module operates on DC12-85V power supply, for various industrial and automotive applications with flexible voltages requirements Multiple triggering Option: Features 9ch 1to1 triggering interfaces to play 9 different tracks, available in both high and low triggering versions for versatiled controls