Features: High performances amplification with LM386 chip, offering 20-200x adjustable gains to boosting weak microphone to loudspeaker drivable levels while maintaining high fidelitys and low noise interferences. Ideal for clear voice capturing and music enhancement projects. Wide voltages compatibility from DC4V-12V, supporting 5V/9V/12V power sources for seamless integration. Perfect for flexible electronics and portable music applications. Plugs and play design featuring MIC input, VCC power, and OUT port with antireverse polarity markings. Not required soldering,just connecting an electret microphone and load for instantly deployment, making it beginner friendly. Gains control via onboard VOL adjustable resistor, allowing customized amplification for voice recording, sensors boosting, or music projects. Tailor output levels to matching specific application needs effortlessly. Compactly and lightweight, this module fit space constrained builds like smart devices, microphone mods, and portable gear without compromising performances. Specifications: Component: ABS Size: Approx.20x20x7mm/0.79x0.79x0.28in Working voltages: DC4V-12V (wide voltages adaptation, compatible for 5V/9V/12V power supply). Magnification: 20-200times adjustable (precisely adjusted through on-board potentiometer). Package Includes: 5pcs LM386 Microphone Amplifier Module note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.