Features: Experience clear amplification with the MAX9814 Electret Microphone Amplifier Board, featuring Automatic Gains Control (AGC) for consistent sound levels. The board's wide voltage compatibility from DC3.6V to 12V and sensitivity electret microphone design make it a versatile choice for various applications. Perfect for electronics enthusiasts, engineers, and students conducting experiments who demand good quality sound amplification in their projects. Perfect for recording studios, broadcasting, sound processing, and acoustic research, this amplifier module enhances clarity in professional and educational settings. Simplify your setup with the MAX9814's user friendly interface, ensuring a seamless connection for microphones and speakers without the hassle of complex configurations. Specifications: Material:PCB Voltage:DC3.6V-12V Package Includes: 1Piece Electret Microphone Amplifier note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.