DC 5V-12V LM386 Electret Microphone Power Amplifier Board Gain 200 Times Mic Amp Makeup Bag confirm that the formatting is

confirm that the formatting is complete

Super long standby for 30 days

Insert the USB flash drive into the USB port of car

1 connection

DC 5V-12V LM386 Electret Microphone Power Amplifier Board Gain 200 Times Mic Amp Makeup Bag confirm that the formatting isSPECIFICATIONS Brand Name: NoEnName_Null Choice: yes Hign concerned Chemical: None Item Type: Microphone Amplifier Material: Plastic Origin: Mainland China Package: Yes LM386 amplifier chip, the magnification can be adjusted by the board above the adjustable resistance between 20 times to 200 times, you can directly drive low power speakers for the use of electret microphone. Operating voltage: DC 4V 12V Board size: 20mm * 20mm Package Included: 1 x