10pcs Electret Microphone Amplifier Module MAX4466 Preamplifier Board with Adjustable Gain for Arduino and Raspberry Pi

Pack of 10 MAX4466 electret microphone amplifier breakout boards, adjustable gain preamplifiers with a soldered 2020KHz electret microphone. Designed for audio sensing, recording, and audioreactive projects. Key benefits Ready to use: electret microphone is presoldered on the blue breakout board for quick integration into prototypes. Adjustable sensitivity: onboard trimmer pot lets you set gain from 25x to 125x to match quiet or loud sound sources. Low power and fidelity: very low quiescent current and strong rejection of supply and commonmode noise for cleaner audio capture. Broad compatibility: works with 2.4 to 5.5 V supplies, making it suitable for 3.3 V and 5 V development boards such as STM and Raspberry Pi compatible controllers. Main features and specifications Amplifier model: MAX4466 preamplifier on breakout board. Microphone: electret capsule with 20 Hz to 20 kHz response soldered to the board. Supply voltage: +2.4 V to +5.5 V. Power supply rejection ratio: 112 dB. Common mode rejection ratio: 126 dB. Open loop voltage gain AVOL: 125 dB with RL = 100 kiloohm. Railtorail output. Quiescent supply current: less than 24 microamp. Gain bandwidth: 600 kHz. Onboard gain adjustment: small trimmer pot on the back to set gain between 25x and 125x. Board color: blue breakout board for easy identification. Connection and use Simple wiring: connect GND to ground and VCC to a 2.4 to 5.5 V DC supply. For performance use the quietest available supply, typically the 3.3 V rail on many development boards. Recommended for audio spectrum analysis: use an FFT driver library to convert audio input to frequency bands for audioreactive applications. Typical applications Realtime audio spectrum visualization and LED audioreactive projects. Voice sampling and simple audio recording front end for microcontroller systems. Sound level detection and audio feedback for interactive installations. What makes this module stand out Presoldered microphone and adjustable gain make it practical for rapid prototyping. rejection ratios and low quiescent current help produce clearer audio signals with minimal power draw. Wide supply range and railtorail output ensure compatibility across common development boards. Contents Ten identical MAX4466 electret microphone amplifier breakout boards with presoldered electret microphones and adjustable gain trimmer pots.