DC3V-5V Silicon Microphone Amplifier Module Silicon Microphone Amplifier Microphone Head with Pre-amplification High Sensitivity

KSh 2,516

KSh 4,29241%

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Product details

Product selling points:1. Use high-quality materials, ble2. High sensitivity microphone+preamplifier circuit design3. Small size and exquisite appearance4. Easy to use5. Wide application ranges:Board size: 18mm * 15mmWorking voltage: DC3V-5VThe output is about 30mw, which can directly drive ordinary 32 headphonesR5: The magnification is used to adjust the resistance. The resistance value can be 4.7k-100k (The plug-in pad is reserved beside the patch resistance. If there is no patch resistance or the welding technology is not good, the plug-in resistance can be used.) The greater the resistance, the higher the gainR6: Adjust the resistance for the microphone sensitivity. The default value for shipment is high sensitivity (resistance value is 0 Ω), and the resistance can be selected from 0 Ω to 10K (plug-in pad is reserved beside the patch resistance. If there is no patch resistance or the welding technology is bad, plug-in resistance can be used.), The greater the resistance, the lower the sensitivityThe package includes:Silicon microphone amplifier module * 1