KEBIDUMEI 50W Bluetooth 5.0 MP3 Amplifier Decoder Board USB TF FM

KEBIDUMEI 50W Bluetooth 5.0 Amplifier & MP3 Decoder Board

Take your DIY audio projects to the next level with the KEBIDUMEI 50W Bluetooth 5.0 Amplifier MP3 Decoder Board. Whether you're building a custom speaker system, upgrading a home audio setup, or creating a karaoke station, this versatile all-in-one board delivers powerful stereo sound with a broad range of connectivity options — all in a compact, easy-to-integrate package.

Made in Mainland China.

Key Features

• 50W Total Output Power — Stereo 2×25W for rich, full-range sound directly connected to your speakers
• Bluetooth 5.0 — Fast, stable wireless audio streaming from smartphones, tablets, and other devices
• Handsfree Calling — Long-press the pause button to answer incoming calls wirelessly
• 6.5mm Microphone Jack — Supports standard 6.5mm microphones; karaoke-ready with original vocal elimination for music accompaniment
• Multi-Format Audio Support — Plays MP3, WMA, WAV, APE, and FLAC files from USB drives or TF/microSD cards
• FM Radio — Built-in FM tuner for wireless broadcast reception
• Voice Recording — Record audio directly to a connected USB drive or TF card (TF/USB mode required)
• Folder Playback — Navigate and select folders on your USB or TF device for organized playlist control
• Power-Off Memory — Resumes playback from where you left off after power is restored
• Wide Voltage Range — Operates on DC 6V–18V (recommended current: 1–2A) for flexible installation in various setups
• Signal-to-Noise Ratio ≥89dB — Clean, clear audio output with minimal background noise
• Touch-Tone Operation — Intuitive button controls with screen display
• Remote Control Compatible — Supports remote control operation for added convenience
• Plastic Enclosure — Lightweight and durable build

Input / Playback Modes

• Bluetooth Streaming
• USB Flash Drive
• TF / MicroSD Card
• LINE IN (Aux Input)
• FM Radio
• MP3 Decoder

Technical Specifications

Great For

• DIY home audio and speaker builds
• Karaoke systems with live microphone input
• Custom garage or workshop sound systems
• Outdoor speaker enclosures
• Maker and electronics projects

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Frequently Asked Questions

Q: What audio formats does the KEBIDUMEI 50W Amplifier MP3 Decoder Board support?

A: This decoder board supports MP3, WMA, WAV, APE, and FLAC audio formats, making it compatible with the most popular music file types stored on USB flash drives or TF/microSD cards.

Q: Can I use this amplifier board for a karaoke setup?

A: Yes! The board features a 6.5mm microphone jack and supports original vocal elimination from music tracks, making it ideal for karaoke systems. You can connect a standard 6.5mm microphone and sing along to your favorite accompaniments.

Q: What is the operating voltage for this decoder board?

A: The board operates on a wide DC voltage range of 6V to 18V with a current draw of 1–2A, giving you flexibility to power it from a variety of DC sources including 12V adapters, battery packs, or other regulated supplies.

Q: How does the recording function work on this board?

A: Recording is available in TF mode or USB mode. To start recording, long-press the MODE button; long-press it again to stop and save the file. You'll need a connected USB drive or TF card as storage. Long-pressing the pause button exits recording mode.

Q: Does this board support hands-free calling via Bluetooth?

A: Yes. When your phone rings while connected via Bluetooth 5.0, simply long-press the pause button on the board to answer the call hands-free.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.