6V-35V DC power supply 9-channel one-to-one trigger interface, triggering up to 9 tracks Short-circuit connection between signal line and negative power supply (low-level signal trigger) Supports MP3 and WAV decoding formats, and supports audio file sampling rates up to 48kHz 32Mbit (4M) flash memory · Supports MP3 and WAV decoding formats, and supports audio file sampling rates up to 48kHz · Can be connected to a computer via USB cable to change custom voice · 3W waterproof speaker, loud sound · 8 trigger modes via DIP switch · Volume potentiometer for volume adjustment Note: 1. A data cable must be used; some USB cables are power cables and cannot transmit data. 2. The audio file name must be a 5-digit number, for example: 00001.mp3 3. When triggering playback one-to-one, the audio file must be saved in the root directory. Color: Black Material: plastic Package Contents: 1*Player Module Only 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.