Lm386 บอร์ดขยายเสียงไมโครโฟนไฟฟ้า 200 เท่า DC

welcome to trendystore2018.th LM386 Electret Microphone Power Amplifier Board Gain 200 Times DC 3.7V-12V Using LM386 amplifier chip, magnification of 200 times, you can directly drive small power speakers, suitable for electret microphone amplification. Practical application: Deafness hearing aids: board connected to the microphone, power, headphones, is a good deaf hearing aids. Operating Voltage: DC 3.7V-12V Board Size(approx): 25mm x 25mm Packing List: 1pcs x LM386 Electret Microphone Power Amplifier Board #LM386 #Electret #Times #200 #Board #Microphone #Gain #3.7V-12V #DC #Power #Amplifier #DC-3.7V-12V #Gain-200 #Microphone-Power #Power-Amplifier #LM386-Electret #Times-DC #Board-Gain