1. This is a one-on-one segmented trigger control player with good functional performance; 2. Supports low-level signal triggering and MP3, WAV decoding formats; 3. Support segmentation, which can trigger 9 tracks in segments; 4. Support TF card (memory card) up to 32GB, USB flash drive (maximum 32GB), and connect to the computer via USB data cable to replace audio files; Product Overview:DY-T20L is a one-to-one segmented trigger control player; Low level signal triggering; Supports MP3 and WAV decoding formats; Can trigger 9 tracks in segments; 6-35VDC wide voltage power supply,direct drive 4-8 speaker,maximum output power of 20W; Support TF card (memory card) up to 32GB,USB flash drive (maximum 32GB),and connect to the computer via USB data cable to replace audio files; Can adjust the volume size; Can be externally connected with warning lights; Multiple triggering working modes can be set,suitable for various scenario applications. Parameter: 1. DC6-35V wide voltage power supply 2. 9-way one-on-one trigger interface,can trigger up to 9 tracks 3. Low level signal triggering (S1... S9 and GND short circuit triggering) 4. Supports MP3 and WAV decoding formats,and supports audio file sampling rates up to 48KHz 5. Supports TF card (maximum 32GB) and USB drive storage,TF card and USB drive must be in FAT32 format 6. Audio files can be replaced by connecting to a computer via a USB data cable 7. Equipped with a 20W Class D amplifier,it can directly drive 4-8 ,5W-20W speakers 8. External 12V warning light can be connected,and the power supply voltage of the warning light is 12V 9. Set 8 triggering working modes for the dial switch 10. Volume potentiometer adjusts volume Colour:As Shown Material:plastic Package Contents: 1 * Development Board 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.