5Pcs Electret Microphone Amplifier Module Adjustable Gain LM386 20‑200x DC4V‑12V

Feature: 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 2. EASY TO USE: Electret microphone amplifier module support GND grounding, VCC connected to 2.4‑5VDC; For good performance, use the quietest power supply available(this will be a 3.3V power supply) 3. POWER SUPPLY NOISE SUPPRESSION FUNCTION: The amplifier has good power supply noise suppression, working voltage support DC 4V‑12V 4. SCRATCH RESISTANT ABS: Microphone amplifier module adopt excellent ABS material, possess impact resistance, scratch resistance, environmentally friendly 5. 5PCS IN TOTAL: The package contain a total of 5pcs amplifier module, enough for you to replace and use, very convenient Specification: Item Type: Electret Microphone Amplifier Module Model: LM386 Material: ABS Package List: 5 x Electret Microphone Amplifier Module Note: Pay attention to the standard operation.