MAX4466 Electret Microphone Amplifier Module AMP Sound Sensor PreamplifierTechnical data:Item Type: Electret Microphone AmplifierMaterial: PlasticOperating temperature: -20 ℃ to 50 ℃Product size: approx. 2 x 2 x 1 cm / 0,8 x 0,8 x 0,4 inchesList of packages:1 x Audio AmplifierFeatures: 1. EXCELLENT SOUND ABSORPTION: The microphone preamplifier uses sound amplification technology to ensure high fidelity and clarity of sound capture2. FEATURES AND EFFECTS: The preamplifier design can improve the sensitivity and signal-to-noise ratio of the microphone, according to different application scenarios3. POWERFUL AUDIO AMPLIFICATION: MAX4466 technology enables sound amplification for powerful sound, useful and practical4. EASY INSTALLATION: The electret microphone amplifier can be easily connected and used on your device, without the need for additional complicated activities5. WIDE APPLICATION: Electret microphone amplifier module is suitable for sound recording, speech recognition, noise detection and other fields