2PCS DC 3-5V Electret Microphone Preamplifier Module with Voice Compression Amp Sound Amplifier Board Adjustable 5-30db
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0.20 kg
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Amazon
USA
- Features:1. Adopting advantageous materials, low-power design, and strong compatibility.2. The gain can be adjusted within a range of 5-30dB, flexibly adapting to different scene requirements.3. The board design is compact, small in size, and easy to integrate.4. Equipped with original polarizing amplifier chip, low noise and high sensitivity pickup.5. Adjustable resistor to adjust gain, easy to operate and suitable for DIY projects.Parameter:Working voltage: DC 3-5VAdjustable gain: 5-30dbBoard size: 16mm * 11mmProduct Description: The polarizer microphone amplifier board adopts the original polarizer amplifier 721 chip, and the gain can be adjusted by the resistance of the adjustable resistor on the board. This is only a small signal amplifier and cannot directly drive the speaker. An amplifier needs to be added.Package Include:2 X pickup module
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2PCS DC 3-5V Electret Microphone Preamplifier Module with Voice Compression Amp Sound Amplifier Board Adjustable 5-30db The polarizer microphone amplifier board adopts the original polarizer amplifier 721 chip, and the gain can be adjusted by the resistance of the adjustable resistor on the board. This is only a small signal amplifier and cannot directly drive the speaker. An amplifier needs to be added. Working voltage: DC 3-5V The gain can be adjusted within a range of 5-30dB, flexibly adapting to different scene requirements. Board size: 16mm * 11mm