--- product_id: 69253104 title: "HiLetgo 2pcs Electret Microphone Amplifier MAX4466 Module Adjustable Gain Blue Breakout Board for Arduino" brand: "hiletgo" price: "$27.09" currency: USD in_stock: true reviews_count: 11 category: "Hi Letgo" url: https://www.desertcart.ec/products/69253104-hiletgo-2pcs-electret-microphone-amplifier-max4466-module-adjustable-gain-blue store_origin: EC region: Ecuador --- # Adjustable gain 20-20KHz range 2.4-5V supply HiLetgo 2pcs Electret Microphone Amplifier MAX4466 Module Adjustable Gain Blue Breakout Board for Arduino **Brand:** hiletgo **Price:** $27.09 **Availability:** ✅ In Stock ## Summary > 🎶 Amplify Your Creativity with Every Project! ## Quick Answers - **What is this?** HiLetgo 2pcs Electret Microphone Amplifier MAX4466 Module Adjustable Gain Blue Breakout Board for Arduino by hiletgo - **How much does it cost?** $27.09 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/69253104-hiletgo-2pcs-electret-microphone-amplifier-max4466-module-adjustable-gain-blue) ## Best For - hiletgo enthusiasts ## Why This Product - Trusted hiletgo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Design:** Space-saving surface mount for all your DIY needs. - • **Easy Integration:** Seamlessly connects with Arduino for hassle-free projects. - • **Crystal Clear Audio:** Experience pristine sound quality with a wide frequency range. - • **Versatile Applications:** Perfect for voice changers, audio recording, and FFT projects. - • **Noise Reduction Champion:** Designed with exceptional power supply noise rejection. ## Overview The HiLetgo MAX4466 Microphone Amplifier Module is a compact and versatile audio solution, featuring a soldered electret microphone and adjustable gain. Ideal for various applications, it operates efficiently on a supply voltage of 2.4 to 5 volts, making it perfect for DIY enthusiasts and professionals alike. ## Description Description: On the back, we include a small trimmer pot to adjust the gain. The output is rail-to-rail so if the sounds gets loud, the output can go up to 5Vpp! You can set the gain from 25x to 125x. That's down to be about 200mVpp (for normal speaking volume about 6" away) which is good for attaching to something that expects 'line level' input without clipping, or up to about 1Vpp, ideal for reading from a microcontroller ADC. Using introduction: Connect GND to ground, VCC to 2.4-5VDC. The audio waveform will come out of the OUT pin. The output will have a DC bias of VCC/2 so when its perfectly quiet, the voltage will be a steady VCC/2 volts (it is DC coupled). If the audio equipment you're using requires AC coupled audio, place a 100uF capacitor between the output pin and the input of your device. If you're connecting to an audio amplifier that has differential inputs or includes decoupling capacitors, the 100uF cap is not required. The output pin is not designed to drive speakers or anything but the smallest in-ear headphones- you'll need an audio amplifier (such as 3.7W stereo amp) If you want to connect the amp directly to speakers. If you're connecting to a microcontroller pin, you don't need an amplifier or decoupling capacitor - connect the OUT pin directly to the microcontroller ADC pin. For audio-reactive projects, we suggest using an FFT driver library which can take the audio input and 'translate' it into frequencies. Package Included: 2* MAX4466 Electret Microphone Amplifier Module Review: Amplified mic - This is a nice microphone for DIY projects. It has only three connections, power, gnd, and signal. It is amplified, but I found it works better when the sound is close by. I plan on using it to detect sound by a small robot. Review: Item received as expected. - Prompt service. I ordered these for a students project. Unfortunately I threw the package away and had to reorder. Second order arrived quickly. No issues with devices. Student has will install next week. ## Features - The board comes with a 20-20KHz electret microphone soldered on - Using the MAX4466, an op-amp specifically designed for amplifier - For the best performance, use the "quietest" supply available (on an for Arduino, this would be the 3.3V supply) - The amplifier has excellent power supply noise rejection - This breakout board is best used for projects such as voice changers, audio recordingmpling, and audio-reactive projects that use FFT ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07DRGF8C2 | | Best Sellers Rank | #87,858 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #17 in Microphone Elements | | Brand | HiLetgo | | Brand Name | HiLetgo | | Customer Reviews | 4.2 out of 5 stars 185 Reviews | | Manufacturer | HiLetgo | | Material Type | Plastic | | Maximum Supply Voltage | 5 volts_of_direct_current | | Minimum Supply Voltage | 2.4 volts_of_direct_current | | Model | MAX4466 | | Mounting Type | Surface Mount | | Number of Channels | 1 | | Number of Items | 2 | | Number of Packs | 2 | | Output Power | 5 Milliwatts | | Part Number | 3-01-1491-2pcs | | Voltage | 5 volts | ## Product Details - **Voltage:** 5 Volts - **Manufacturer:** HiLetgo - **Maximum Supply Voltage:** 5 Volts (DC) - **Minimum Supply Voltage:** 2.4 Volts (DC) - **Mounting Type:** Surface Mount ## Images ![HiLetgo 2pcs Electret Microphone Amplifier MAX4466 Module Adjustable Gain Blue Breakout Board for Arduino - Image 1](https://m.media-amazon.com/images/I/61pv2zpLasL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Amplified mic *by E***O on July 11, 2019* This is a nice microphone for DIY projects. It has only three connections, power, gnd, and signal. It is amplified, but I found it works better when the sound is close by. I plan on using it to detect sound by a small robot. ### ⭐⭐⭐⭐⭐ Item received as expected. *by E***Y on October 20, 2023* Prompt service. I ordered these for a students project. Unfortunately I threw the package away and had to reorder. Second order arrived quickly. No issues with devices. Student has will install next week. ### ⭐⭐⭐⭐ Works pretty well, but seems to eat batteries. *by H***R on May 20, 2025* I rigged the microphone up with an old amplifier and some earphones to facilitate conversation with my hearing impaired wife. The setup works really well, except that I powered the mike with a couple of AA batteries. Sadly the batteries don't last very long. I haven't measured the current drain yet, but it must be fairly hi, ## Frequently Bought Together - HiLetgo 2pcs Electret Microphone Amplifier MAX4466 Module Adjustable Gain Blue Breakout Board for Arduino - Teyleten Robot ESP32S ESP32 ESP-WROOM-32 Development Board 2.4GHz Dual-Core WiFi +Bluetooth 2 Function Microcontroller for Arduino (ESP32 30P, 3PCS) - ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ec/products/69253104-hiletgo-2pcs-electret-microphone-amplifier-max4466-module-adjustable-gain-blue](https://www.desertcart.ec/products/69253104-hiletgo-2pcs-electret-microphone-amplifier-max4466-module-adjustable-gain-blue) --- *Product available on Desertcart Ecuador* *Store origin: EC* *Last updated: 2026-09-07*