---
product_id: 224675426
title: "AZDeliveryMax9814 Microphone AGC Amplifier Board 2.7V - 5.5V Auto Gain Control Amplifier 40dB/50dB/60dB compatible with ESP8266, ESP32 and Arduino Including E-Book! (Pack of 3)"
brand: "azdelivery"
price: "$U1615"
currency: UYU
in_stock: true
reviews_count: 12
url: https://www.desertcart.uy/products/224675426-azdeliverymax9814-microphone-agc-amplifier-board-2-7v-5-5v-auto
store_origin: UY
region: Uruguay
---

# 2.7V - 5.5V supply range Includes E-Book 40dB/50dB/60dB settings AZDeliveryMax9814 Microphone AGC Amplifier Board 2.7V - 5.5V Auto Gain Control Amplifier 40dB/50dB/60dB compatible with ESP8266, ESP32 and Arduino Including E-Book! (Pack of 3)

**Brand:** azdelivery
**Price:** $U1615
**Availability:** ✅ In Stock

## Summary

> 🎤 Amplify Your Creativity with Every Project!

## Quick Answers

- **What is this?** AZDeliveryMax9814 Microphone AGC Amplifier Board 2.7V - 5.5V Auto Gain Control Amplifier 40dB/50dB/60dB compatible with ESP8266, ESP32 and Arduino Including E-Book! (Pack of 3) by azdelivery
- **How much does it cost?** $U1615 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/224675426-azdeliverymax9814-microphone-agc-amplifier-board-2-7v-5-5v-auto)

## Best For

- azdelivery enthusiasts

## Why This Product

- Trusted azdelivery brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Quick Start Guide:** Included E-Book accelerates your project setup and configuration.
- • **Compact Powerhouse:** Three-pack ensures you have the tools for multiple projects.
- • **Unleash Your Sound:** Experience crystal-clear audio with adjustable gain settings.
- • **Low Noise, High Quality:** Enjoy low-noise performance with a 1.25V microphone bias.
- • **Versatile Compatibility:** Perfectly pairs with ESP8266, ESP32, and Arduino for seamless integration.

## Overview

The AZDelivery Max9814 Microphone AGC Amplifier Board is a high-quality audio amplifier featuring Automatic Gain Control (AGC) with three adjustable gain settings (40dB, 50dB, 60dB). It operates within a supply voltage range of 2.7V to 5.5V and includes a low-noise microphone bias of 1.25V. This product comes in a convenient three-pack and includes an E-Book to assist with project setup and configuration.

## Description

AZDeliveryMax9814 Microphone AGC Amplifier Board 2.7V - 5.5V Auto Gain Control Amplifier 40dB/50dB/60dB compatible with ESP8266, ESP32 and Arduino Including E-Book! (Pack of 3)

## Features

- ✅ Get a three-piece deal of the AZDelivery Max9814 Microphone AGC Amplifier.
- ✅ High quality microphone amplifier with Automatic Gain Control (AGC) and low noise microphone bias.
- ✅ Three amplifier settings (40dB, 50dB, 60dB). Supply voltage range 2.7V to 5.5V 3mA current; Output: 2Vpp on 1.25V bias; Frequency Response: 20Hz - 20 KHz;Programmable Attack and Release Ratio.
- ✅ Low-noise microphone bias voltage 1.25V, 2Vpp. The included E-Book 📖provides useful information on how to begin your project, helps with a quick setup and saves time on the configuration process.
- ✅ This product includes an E-Book that provides useful information on how to begin your project, it helps with a quick setup and saves time on the configuration process. We provide an array of application examples, full installation guides and libraries.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Number of Channels | 1 |
| Minimum Supply Voltage | 2.7 Volts |
| Voltage | 5.5 Volts |
| Maximum Supply Voltage | 5 Volts |

## Product Details

- **Voltage:** 5.5 Volts
- **Manufacturer:** AZDelivery
- **Maximum supply voltage:** 5 Volts
- **Minimum supply voltage:** 2.7 Volts
- **Brand:** AZDelivery

## Images

![AZDeliveryMax9814 Microphone AGC Amplifier Board 2.7V - 5.5V Auto Gain Control Amplifier 40dB/50dB/60dB compatible with ESP8266, ESP32 and Arduino Including E-Book! (Pack of 3) - Image 1](https://m.media-amazon.com/images/I/81oSFT4IPjL.jpg)
![AZDeliveryMax9814 Microphone AGC Amplifier Board 2.7V - 5.5V Auto Gain Control Amplifier 40dB/50dB/60dB compatible with ESP8266, ESP32 and Arduino Including E-Book! (Pack of 3) - Image 2](https://m.media-amazon.com/images/I/71u8WfFdacL.jpg)
![AZDeliveryMax9814 Microphone AGC Amplifier Board 2.7V - 5.5V Auto Gain Control Amplifier 40dB/50dB/60dB compatible with ESP8266, ESP32 and Arduino Including E-Book! (Pack of 3) - Image 3](https://m.media-amazon.com/images/I/712B0lKpwtL.jpg)
![AZDeliveryMax9814 Microphone AGC Amplifier Board 2.7V - 5.5V Auto Gain Control Amplifier 40dB/50dB/60dB compatible with ESP8266, ESP32 and Arduino Including E-Book! (Pack of 3) - Image 4](https://m.media-amazon.com/images/I/71rJH95CxGL.jpg)
![AZDeliveryMax9814 Microphone AGC Amplifier Board 2.7V - 5.5V Auto Gain Control Amplifier 40dB/50dB/60dB compatible with ESP8266, ESP32 and Arduino Including E-Book! (Pack of 3) - Image 5](https://m.media-amazon.com/images/I/715PVCJwxnL.jpg)

## Available Options

This product comes in different **Number Of Items** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great performance
  

*by A***R on Reviewed in the United Kingdom on 2 November 2020*

The module arrived promptly and well packaged. This tiny board module measures 14.2mm x 25.6mm and comes with a pin header pre-soldered.The silkscreen is very clear ad easily readable and the pin markings are on both sides of the board. The overall build quality of the module is good: SMD parts are properly aligned, there is no excess solder or solder flux. The PCB corners are rounded, it may seem like a minor detail but rounded corners are great because it makes the module that bit nicer to handle and also gives a little more clearance when fitting in tight spaces. And this microphone is meant to fit into tight spaces.With good quality components and solid connections, this microphone gives the impression of enhanced ( super) hearing. The MAX9814 chip can drive small headphones easily, all that is required is a DC decoupling capacitor on the “out pin” to be connected in series with the input of the headphones.I have also attached a snip of a simple Arduino based code plotting the analogue output of the microphone.Not having really worked with audio things before, I was really impressed by the performance of the automatic gain feature with no extra settings needed. It works out of the box.One more detail that I noticed is that the actual microphone capsule is not sitting on the PCB, it is raised at an offset via its two connection pins. This may improve the performance/noise immunity of the microphone.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    👍
  

*by T***I on Reviewed in the United Kingdom on 26 April 2023*

It works with Esp32 development board. I’m running Wled sound reactive firmware to run LED lights and this mic works fantastic for this. Small form factor and easy to use. Well recommended for DIYers.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Used to give a DMX desk an independent sound input
  

*by M***3 on Reviewed in the United Kingdom on 19 July 2024*

Supplied with 5V from an existing PSU (not supplied) and dropped the voltage using a couple of diodes to give about 4V. Added a pot to the output to give about 50% going to the DMX controller. AGC works well and triggers light changes in my use case. Works over a wide range of sound levels.Not used for audio to “listen” to, so can’t comment on sound quality. Seller forwards a link after purchase with the manual.Great little PCB and minimal messing about to get a really good result.The main benefit  is isolation electrically from the sound system meaning I don’t need to connect the lights and sound system using a cable.

## Frequently Bought Together

- AZDelivery Max9814 Microphone AGC Amplifier Board 2.7V - 5.5V Auto Gain Control Amplifier 40dB/50dB/60dB compatible with ESP8266, ESP32 and Arduino Including E-Book! (Pack of 3)
- DollaTek INMP441 Omnidirectional Microphone I2S Interface Digital Output Sensor Module Supports ESP32
- AZDelivery 5 x ESP32-DevKitC NodeMCU WiFi WLAN CP2102 ESP32-WROOM-32D IoT 2-In-1 Microcontroller Bluetooth Module Development Board compatible with Arduino including E-Book!

---

## 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.uy/products/224675426-azdeliverymax9814-microphone-agc-amplifier-board-2-7v-5-5v-auto](https://www.desertcart.uy/products/224675426-azdeliverymax9814-microphone-agc-amplifier-board-2-7v-5-5v-auto)

---

*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-18*