Please input a DC voltage higher than 18V, otherwise the power amplifier board will not work!
Trust me, it won't let you down.
This little guy is equipped with Two TPA3251 power amplifier chips, the power output is up to 220W*2+350W (peak music power output), and
supports multiple input methods: Bluetooth 5.1 /AUX/USB Flash disk (formatted as FAT32).
In addition, it has a unique function, that is, you can set the Bluetooth name, password, etc. through the mobile APP, so you dont have to worry about neighbors connecting to Bluetooth by mistake, and you dont have to worry about being indistinguishable due to the same Bluetooth name of multiple power amplifier boards.
The XY-S350H power amplifier has the functions of bass frequency adjustment, bass volume adjustment, left and right high and low bass independent adjustment functions, and can modulate your favorite sound effects at any time.
The main knob adopts the rotary encoder used in high-end power amplifiers to achieve 360-degree stepless tuning, with a smooth feel, short
press: play/pause, long
press: on/off, one-key start and stop, easy to use and easy to understand and operate.