Convenient welding, high success rate of welding training, fulfilling one's dream of making a radio

Using STC15W chip as the main control chip and RDA5807S receiver module, it has the effect of 87-108MHz global FM reception frequency band compatibility, with advantages such as noise cancellation, soft sound, bass enhancement, high sensitivity, low noise, and strong anti-interference ability. The power amplifier part adopts TDA2822 power amplifier integrated circuit, which has the characteristics of simple circuit, good sound quality, and wide voltage range. Supports dual power supply (USB 5V power supply or 2 No. 5 batteries)