Use reminder:
This product has its own amplifier! Power amplifier boards, power amplifiers, earphones, active speakers and all speakers with power and external power cannot be used directly! Otherwise, you are at your own risk!
Special Note:
1. It is recommended to use 3.7-5V lithium battery or 5V adapter for this model(Maximum 5.5V)powered by, Do not use dry batteries, power banks, multi-function transformers and other voltage, unstable current power supply!
2. It is strictly forbidden to use AC as power supply for this decoder board! (The transformer must pass through the rectifier bridge and filter the wave before it can be used)!
3. This decoder board is 5V with power amplifier, which can be directly connected to speakers.(The product has its own power amplifier, so it is not allowed to connect to the power amplifier!)
4. Power-off memory function: only the currently playing song can be recorded, but the current playing second cannot be memorized.(If it is a skewer, the playback is halfway through, and it will start from the beginning after the power is cut off, which is very inconvenient.)If you have special requirements for power-off memory, please purchase carefully, thank you for your understanding, our products are just so imperfect.