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The MAX4466 Electret Microphone Amplifier (GY-MAX4466) offers adjustable gain for clear, amplified audio from electret microphones. Perfect for sound detection, voice recognition, and DIY electronics, this compact module operates from 2.4V to 5.5V, making it ideal for Arduino and Raspberry Pi projects.
The MH-MX8 Wireless Bluetooth MP3 Audio Receiver Board with Bluetooth 4.2 is a versatile and high-quality solution for adding wireless audio streaming to your projects. Supporting MP3 lossless decoding, it’s perfect for DIY Bluetooth speakers, home audio systems, and portable sound solutions.
XH-M609 DC 12V-36V Charger Controller Module With Over Discharge,Under voltage Battery Protection 