The LM386 Audio Amplifier Module is a simple analog audio amplifier board built around the LM386 low power amplifier IC, accepting a direct analog audio signal as input and delivering up to 0.5W of amplified mono output to a small speaker, powered from any supply between 4V and 12V DC. Unlike the digital audio modules — which require I2S connections, Bluetooth pairing, or serial commands from a microcontroller plug in a phone headphone jack, connect an audio jack cable, or feed in a microphone signal, and the board amplifies it directly to speaker level with no code and no microcontroller required.
The lm386 audio amplifier board’s 4V to 12V supply range is the widest of any audio module in the lineup — it runs from 4 AA batteries (6V), or a 5V USB supply, giving builders flexibility to power it from whatever battery or supply in the project. This lm386 audio amplifier is often the first amplifier module use in electronics learning, the wiring is minimal: power, ground, audio input, and speaker output are all that are needed to get sound from a speaker.
The lm386 amplifier module’s 0.5W output is suitable for small personal-volume speakers in enclosed project boxes, alarm builds, and STEM learning demonstrations where loud output is not needed. Available from StemVolt, this lm386 audio amplifier module is ideal for students and beginners.
Related Products:
- Checkout PAM8403 Audio Amplifier Module
Features:
- Accepts any analog audio input — no I2S, Bluetooth, or MCU needed
- 4V to 12V widest supply range in StemVolt audio module lineup
- Runs on AA batteries, 9V block, 5V USB, or 12V adapter
- Low distortion 0.5W mono output for small speaker builds
Technical specifications:
| Specification | Details |
|---|---|
| IC Used | LM386 Low Power Audio Amplifier |
| Supply Voltage | 4V – 12V DC |
| Output Power | Up to 0.5W |
| Channel Type | Mono |
| Distortion | Low |
Applications:
- LM386 module used for beginner analog audio speaker amplifier build
- Student uses audio module for battery-powered project
- Maker uses lm386 audio amplifier for headphone jack to speaker build
- lm386 amplifier module for analog electronics lab experiment
Package Includes:
- 1 x LM386 Audio Amplifier Module














Sunil Hegde –
Tracking available throughout delivery
Anand Subramanian –
No complaints with the quality
Tarun Jha –
This amplifier module produced clear audio output and worked perfectly for my engineering project.
Vijay Agrawal –
Well-sealed packaging, safe payment options, and quick response made this purchase highly satisfactory.
Ramesh Purohit –
Value for money product