5Pcs Adjustable Gain Microphone Amplifier Modules For Electret Microphone DC4V‑1

5Pcs Adjustable Gain Microphone Amplifier Modules For Electret Microphone DC4V‑1

Feature: \n 1. FLEXIBLE AND ADJUSTABLE: LM386 power amplifier chip, magnification can be adjusted between 20 times and 200 times through the adjustable resistance on the board, can directly drive small power horn, suitable for the use of electret microphone\n2. EASY TO USE: Electret microphone amplifier module support GND grounding, VCC connected to 2.4\u20115VDC; For good performance, use the quietest power supply available(this will be a 3.3V power supply)\n3. POWER SUPPLY NOISE SUPPRESSION FUNCTION: The amplifier has good power supply noise suppression, working voltage support DC 4V\u201112V\n4. SCRATCH RESISTANT ABS: Microphone amplifier module adopt excellent ABS material, possess impact resistance, scratch resistance, environmentally friendly\n5. 5PCS IN TOTAL: The package contain a total of 5pcs amplifier module, enough for you to replace and use, very convenient \n\nSpecification: \n\nItem Type: Electret Microphone Amplifier Module\nModel: LM386\nMaterial: ABS\nOperating Vol:

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