Feature: 1. 3.7-5VDC wide voltage power. 2. 9-way one-for-one trigger interface, can trigger upto 9 tracks. 3. LowLevel signal triggering. 4. Supports MP3 and WAV decoding formats, and supports audio file sampling rates upto 48KHz. 5. Supports memory card (maximum 32GB) and USB drive (maximum 32GB) storage, memory card and USB drive should be in FAT32 format. 6. Audio files can be replaced by connecting to a computer via a USB data cable. 7. Equipped with a 5W Class D power amplifier, it can directly drive 4Ω 3W and 8Ω 1W speakers. 8. Set 8 triggering working modes for the dial switch. 9. Volume potentiometer adjusts volume. Specification: This is a one-for-one segmented trigger control player. LowLevel signal triggering, supports MP3 and WAV decoding formats, can trigger 9 tracks in segments. Connect to the computer via a USB data cable to replace audio files, adjust the volume through a volume potentiometer, and set multiple trigger working modes, suitable for various scene applications. Features: 3.7-5VDC wide voltage power. 9-way one-for-one trigger interface, can trigger upto 9 tracks. LowLevel signal triggering. Supports MP3 and WAV decoding formats, and supports audio file sampling rates upto 48KHz. Supports memory card (maximum 32GB) and USB drive (maximum 32GB) storage, memory card and USB drive should be in FAT32 format. Audio files can be replaced by connecting to a computer via a USB data cable. Equipped with a 5W Class D power amplifier, it can directly drive 4Ω 3W and 8Ω 1W speakers. Set 8 triggering working modes for the dial switch. Volume potentiometer adjusts volume. Specifications: Main color: black Main material: plastics+metal Output power: 5W Voltage: DC3.7-5V Item size: 45 * 45mm / 1.8 * 1.8in Item weight: 10g / 0.4ounce Package size: 55 * 55 * 10mm / 2.2 * 2.2 * 0.4in Package weight: 12g / 0.4ounce Packing List: 1 * Audio Player Module Package List: 1 * Audio Player Module