The Mini Sound Microphone 4.5mm x 2.2mm is a compact and sensitive audio input component designed for voice detection, recording, and sound-triggered applications. This is high-quality condenser microphones is perfect for DIY electronics, wearable tech, hearing aids, and other compact audio systems where space and performance matter. Key Features Ultra-compact size: only 4.5mm x 2.2mm High sensitivity for accurate sound detection Low power consumption suitable for portable devices Ideal for voice input, audio sensing, and recording Technical Details Product Type: Electret condenser microphone Dimensions: 4.5mm diameter x 2.2mm height Sensitivity: -44 ± 2dB Impedance: ≤2.2kΩ Operating Voltage: 1.5V to 10V DC Frequency Response: 20Hz to 20kHz Directivity: Omnidirectional Output: Analog Mounting Type: PCB mount or wired RoHS Compliant: Yes Applications Voice recognition modules Smart wearable electronics Hearing aids and small audio devices Arduino and Raspberry Pi projects Audio recording systems in compact enclosures Why Choose the Mini Sound Microphone 4.5mm x 2.2mm? This Mini Sound Microphone 4.5mm x 2.2mm offers high-quality sound input in an ultra-compact form. It’s designed to deliver accurate and clear voice signals even in small and power-constrained systems. Whether you’re building a smart device, audio project, or sensor module, this microphone provides the performance and reliability you need. Package Includes 1 x Mini Sound Microphone 4.5mm x 2.2mm