DIY Bluetooth Stereo Speaker Soldering Kit – Acrylic Build

Build Your Own Bluetooth Stereo Speaker – DIY Soldering Kit

Take your electronics skills to the next level with this hands-on DIY Bluetooth Stereo Speaker Kit. Designed for students, hobbyists, and electronics enthusiasts, this kit walks you through assembling a fully functional 2-channel Bluetooth speaker from individual components. It's the perfect teaching and training project for learning soldering, circuit assembly, and electronics fundamentals — all while building something you'll actually use and enjoy.

Made in Mainland China.

Key Features

• Bluetooth Wireless Audio: Pair with your smartphone or tablet via Bluetooth (device name: "XC 046"). Automatically switches to USB flash drive playback when Bluetooth disconnects.
• 2-Channel Stereo Output: 3W + 3W power for clear, room-filling sound quality.
• Full-Frequency Speaker: 40mm driver with PU edge and silver-black diaphragm for balanced, crisp audio reproduction.
• Remote Control: Power and volume can be controlled via the included remote — no need to reach for the unit.
• LED Sound-Reactive Lights: Built-in LEDs pulse and flow in sync with the music, creating a stunning light-and-sound display. The louder the audio, the brighter the LEDs.
• Transparent Acrylic Shell: Constructed from six 3mm high-transparency acrylic panels — beautiful, modern, and lets you show off the internals you soldered yourself.
• USB Power Cord Included: Powered via USB (DC 4.2–5V) — compatible with any 5V phone charger or computer USB port. For best sound quality, use a 2A power source.
• Pre-Welded Bluetooth Circuit Board: The Bluetooth module boards come pre-soldered. You assemble the sound-control board and wiring, making this approachable for beginners while still educational.
• Power-Off Memory: Remembers your settings when powered off and restores them on next use.

Technical Specifications

• Output Channels: 2-channel stereo
• Output Power: 3W + 3W
• Supply Voltage: DC 4.2–5V (⚠️ Do NOT exceed 5V — overvoltage will damage the module)
• Rated Current: 0.5A–2A (2A recommended for best audio performance)
• Speaker Driver: 40mm full-frequency, PU edge, 4Ω 3W
• Shell Material: 3mm high-transparency acrylic (6 panels)
• Audio Sources: Bluetooth, USB flash drive
• Wiring: White terminal → speaker | Red terminal → power supply (red wire = positive, black = negative)

What's in the Box

• 1× DIY Bluetooth Speaker Kit (all components included)
• USB power cord
• Pre-welded Bluetooth circuit boards
• Acrylic shell panels (protective film must be removed before assembly)
• All necessary electronic components for the sound-control board

Important Assembly Notes

All parts require self-assembly and soldering. Carefully remove the brown protective film from all acrylic panels before splicing. Always follow the product instructions closely — incorrect wiring can cause the amplifier to malfunction. Power this unit only from a 5V USB source rated at 2A for best performance and safety.

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Learn more: ENERGY STAR product efficiency guidance

Frequently Asked Questions

Q: Do I need prior soldering experience to complete this DIY Bluetooth speaker kit?

A: Some basic soldering experience is helpful, but this kit is designed as a teaching and training project — making it beginner-friendly. The Bluetooth circuit boards come pre-soldered, so you only need to assemble and wire the sound-control board. Following the included instructions carefully will guide you through the process step by step.

Q: What power source is required for the DIY Bluetooth speaker kit?

A: The kit runs on DC 4.2–5V via the included USB power cord. It is compatible with any standard 5V smartphone charger or computer USB port. For the best audio quality, use a charger rated at 2A. Important: Do not use a power supply exceeding 5V, as this will damage the module.

Q: Can I play music from a USB flash drive as well as via Bluetooth?

A: Yes! The speaker supports both Bluetooth wireless streaming and USB flash drive playback. When your Bluetooth connection is disconnected, the speaker automatically switches to reading music from a connected USB drive — so your music never stops.

Q: How do I connect my phone to the Bluetooth speaker?

A: Simply turn on Bluetooth on your smartphone, scan for available devices, and select "XC 046" from the list. Tap Connect and you're ready to stream audio wirelessly to your newly built speaker.