{"product_id":"condenser-microphone","title":"Condenser Microphone","description":"\u003cmeta name=\"description\" content=\"Buy Condenser Microphone online in India at best price from The Tech Depot, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n```html\n\u003ch1\u003eCondenser Microphone\u003c\/h1\u003e\n\u003cp\u003eHigh-sensitivity condenser microphone module from The Tech Depot, Bengaluru. Ideal for sound detection, voice-activated projects, and audio capture in Arduino, ESP32, and Raspberry Pi applications. Fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eElectret Condenser Microphone (ECM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e-38 dB to -44 dB (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e20 Hz - 20 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e1.5V - 10V DC (typically 3.3V or 5V with breakout)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;= 2.2 kOhm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal-to-Noise Ratio\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;= 58 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDirectional Pattern\u003c\/td\u003e\n\u003ctd\u003eOmnidirectional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e~9.7 mm diameter x 6.7 mm height (standard capsule)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eAnalog output (requires amplifier circuit or breakout board)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eOriginal \/ Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7-day warranty on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003ctd\u003eEmail \u0026amp; WhatsApp 24\/7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe condenser microphone (electret condenser capsule) is one of the most widely used sound sensors in electronics projects and embedded systems. It converts acoustic sound waves into electrical signals, making it the go-to component for voice recognition, sound-level monitoring, clap switches, and audio recording circuits.\u003c\/p\u003e\n\u003cp\u003eUnlike dynamic microphones, condenser microphones use a permanently charged diaphragm placed close to a backplate. When sound waves hit the diaphragm, the capacitance between the diaphragm and backplate changes, producing a small electrical signal. A built-in FET (Field Effect Transistor) inside the capsule provides initial impedance matching and signal buffering, enabling easy integration with amplifier stages or microcontroller ADC pins.\u003c\/p\u003e\n\u003cp\u003eThis compact, low-cost capsule delivers clear audio pickup across the full audible frequency range (20 Hz - 20 kHz) and works reliably at standard logic voltages of 3.3V or 5V, making it directly compatible with Arduino, ESP32, ESP8266, STM32, Raspberry Pi Pico, and other popular development platforms.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Sensitivity:\u003c\/strong\u003e Captures quiet sounds and subtle audio variations with a typical sensitivity of -38 dB to -44 dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Frequency Response:\u003c\/strong\u003e Full audible range from 20 Hz to 20 kHz for accurate sound reproduction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOmnidirectional Pickup:\u003c\/strong\u003e Captures sound equally from all directions - no precise aiming required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Power Consumption:\u003c\/strong\u003e Operates on as little as 1.5V, ideal for battery-powered and portable projects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Form Factor:\u003c\/strong\u003e Standard 9.7 mm capsule fits easily on breadboards, PCBs, and custom enclosures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in FET Preamplifier:\u003c\/strong\u003e Internal impedance-matching FET simplifies external circuit design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent Signal-to-Noise Ratio:\u003c\/strong\u003e \u0026gt;= 58 dB SNR ensures clean signal output with minimal background noise\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Works with Arduino, ESP32, Raspberry Pi, STM32, PIC, and virtually any microcontroller with an analog input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy to Interface:\u003c\/strong\u003e Simple two-terminal connection - just add a bias resistor and coupling capacitor for basic operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAffordable \u0026amp; Reliable:\u003c\/strong\u003e Industry-standard electret capsule trusted in consumer electronics, IoT devices, and educational kits worldwide\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cp\u003eAn electret condenser microphone contains a thin diaphragm made of electret material (a permanently polarized dielectric) positioned very close to a conductive backplate. Together, these form a variable capacitor. When sound pressure waves strike the diaphragm, it vibrates, changing the distance between the diaphragm and backplate. This variation in distance causes a corresponding change in capacitance, which produces a tiny alternating voltage signal that mirrors the original sound wave.\u003c\/p\u003e\n\u003cp\u003eInside the capsule, a JFET (Junction Field-Effect Transistor) acts as an impedance converter, transforming the extremely high-impedance signal from the capacitor element into a lower-impedance output that external circuits can process. The microphone requires a small DC bias voltage (typically supplied through a resistor connected to VCC) to power this internal FET.\u003c\/p\u003e\n\u003cp\u003eThe analog output signal is usually in the millivolt range and must be amplified before being read by a microcontroller's ADC. Common amplifier options include discrete transistor stages, op-amp circuits (like LM386 or LM358), or dedicated microphone breakout boards (such as the MAX9814 or MAX4466 modules).\u003c\/p\u003e\n\n\u003ch2\u003eTypical Circuit Connection\u003c\/h2\u003e\n\u003cp\u003eFor basic operation with a microcontroller:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositive Terminal (+):\u003c\/strong\u003e Connect to VCC (3.3V or 5V) through a 2.2 kOhm bias resistor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNegative Terminal (-):\u003c\/strong\u003e Connect to GND\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhen will I receive my order?\u003c\/summary\u003e\n\u003cp\u003eProducts ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs technical support available?\u003c\/summary\u003e\n\u003cp\u003eYes, 24\/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is your return policy?\u003c\/summary\u003e\n\u003cp\u003e7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre bulk discounts available?\u003c\/summary\u003e\n\u003cp\u003eYes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003ch2\u003eBuy Condenser Microphone Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003eCondenser Microphone\u003c\/strong\u003e online at \u003ca href=\"https:\/\/thetechdepot.in\"\u003eThe Tech Depot\u003c\/a\u003e - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on \u003cstrong\u003eCondenser Microphone\u003c\/strong\u003e with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.\u003c\/p\u003e\n\u003cp\u003eLooking to buy \u003cstrong\u003eCondenser Microphone\u003c\/strong\u003e at the best price in India? The Tech Depot offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.\u003c\/p\u003e","brand":"The Tech Depot","offers":[{"title":"Default Title","offer_id":48746545185025,"sku":"TTD-17577","price":13.78,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/1577\/3185\/files\/c0b838ded9dff65ac7b228deca3c4960.jpg?v=1778107268","url":"https:\/\/techdepot.in\/products\/condenser-microphone","provider":"Tech Depot India","version":"1.0","type":"link"}