- ??, ???, China
- US $8.88
- Mar 5th
Dual -channel amplifier board/Teaching training components / PCB board DIY kit it's DIY kit ,not completed,need solder after you get it Dual -channel amplifier parts, without housing , using 2822 chip , the working voltage of 6V ( Kit without battery ) . Production is relatively simple for electronics enthusiasts and professional vocational school electronics assembly package: 1 pcs