TDA7492 Wireless Bluetooth 4.0 2*50W 2 Channel Audio Receiver Stereo Digital Amplifier Board Module

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150W 8V-26V Amplifier Bluetooth-compatible 5.0 Dual Channel MP3 WAV APE Decoder Board Car FM Radio Player

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Bluetooth Audio Receiver Template Stereo Wireless Speaker Power Amplifier DIY Bluetooth Module 4.0

MP3 Decoder Board with Amplifier, Supports TF Card & USB for Lossless Playback

Aokin XL6019 Automatic DC/DC Converter

4 Way Stereo Sound Mixer Board 3.5mm Headphone Driver Power Amplifier Mixer Splitter 2 Way Input 4

TPA3116 Digital Amplifier Board Bluetooth Receiver U Disk TF Card Decoder with Remote Control

Subwoofer Amplifier Board Mono 100W High Power Digital Amplifier Module for DIY Speaker Black

400W Treble/Bass Frequency Divider Double 2 Way Speaker Audio Crossover Filter

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IRS2092S 500W Mono High-Power Class D Hi-Fi Digital Amplifier Board/Finished Product

Microphone Pickup Module Dual Channel Output Adjustable Gain Amplifier Board for Detection

HW-407 Bluetooth 4.2 Transmission Dual Channel Stereo Lossless Wireless O Module

Bluetooth 5.0 2*5W Amplifier Board AUX O Input Power Amplifier Board 3.7V 5V

MP3 Decoder Module with TF Card and USB Support, Built-in Amplifier

MAX4466 Microphone Amplifier Module Sound Sensor 2.4V To 5.5V Microphone Preamplifier

Power Amplifier Board Digital 2 Channel Potentiometer Module Electronic Component TPA3221