Boost your audio projects with this ultra-compact LM386 Electret Microphone Amplifier Board. This high-efficiency module is designed to amplify weak signals from electret microphones to a line-level output suitable for power amplifiers, speakers, or microcontroller ADC inputs. With its wide operating voltage and miniature footprint, it is the perfect solution for DIY intercoms, voice detection systems, and portable audio gadgets. Key Features:

• Reliable Amplification: Features the classic LM386 low-voltage audio power amplifier chip for stable and clear performance.
• Ultra-Compact Design: Measuring only 20mm x 20mm, this board fits into the smallest enclosures and project boxes.
• Wide Voltage Range: Operates on DC 4V to 12V, making it compatible with batteries, USB power, and standard 5V/9V/12V rails.
• Onboard Gain Control: Includes a miniature trimmer potentiometer for fine-tuning the output volume to suit your needs.
• Low Noise Output: Integrated high-quality capacitors help filter power ripples for a cleaner audio signal.
• Simple Integration: Clearly marked solder pads for Power Input, Audio Output, and Microphone Input ensure quick and easy wiring.

Technical Specifications:

• Operating Voltage: DC 4V – 12V
• Amplifier Chip: LM386
• Input Compatibility: Electret Microphone Heads
• Size: 20 * 20 * 7 mm
• Weight: Approx. 2.1g

Applications:

• DIY Intercom Systems and Walkie-Talkies
• Voice-Activated Switches and Sensors
• Audio Recording and Monitoring Devices
• STEM Education and Electronics Prototyping

Package Includes:

• 1 x LM386 Electret Microphone Amplifier Board