Digital amplifier board for 2.4 GHz Bluetooth speaker, 5V USB Android power supply, DIY mini wireless speaker modification motherboard

MAKITA DMR200 12v-18v & 240v Bluetooth Speaker

DeWalt DCR011-XJ 10.8V/18V/54V Bluetooth Speaker (Body Only)

Makita MR007GZ Digital DAB Site Radio DAB + Bluetooth USB Charger 18V 40V XGT

DEWALT DWST1-81079 12v-18v & 240v DAB+ radio / charger

MAKITA DMR301 12v-18v & 240v DAB+ radio / charger

Bluetooth Amplifier Board Module 2x50W Digital Stereo Audio Amp Board Dual Channel DC 5V-27V with HiFi Filter

MAKITA DMR056 18v DAB+ radio / torch

Portable Radio, FM Radio with Large Capacity Rechargeable Battery (3000 mAh), Support MP3/SD/USB/AUX, Black

Bluetooth Amplifier Board Module ZK-502L 5.0 Bluetooth 2 50W Digital Amplifier Board (DC15-36V)--DTEKGAZ

Adjustable low-pass and high-pass filter, solderless, for high-power 400W KTV stage speakers.

High-end digital audio amplifier board, 18W mono audio amplifier module, DIY modification for 6-12V active speakers

Passive tuning board, preamp board with high and low frequency adjustment, DIY audiophile HiFi speaker amplifier preamp module.

Bluetooth 2.0 digital amplifier board, 12V dual-channel stereo speaker kit (DIY kit), with remote control, 2 x 50W

High-fidelity passive crossover for DIY home audio setup, two-way bookshelf speaker with high/low frequency response

DIY lossless audio speaker system with 230W Bluetooth decoder, stereo amplifier board, color screen and recording/call function.

TDA2050 Audiophile HiFi Digital Amplifier Board, 30W Mono Audio Power Amplifier Module, 12-24V DC Power Supply

The electronic volume control module has an onboard 3W digital audio amplifier board with buttons for adjusting volume.