Bluetooth 5.0 Speaker DIY Kit – FM Radio, 12-LED Level Indicator, USB/SD Playback, Remote Control

Build your own Bluetooth speaker — and make it light up to the beat. This DIY electronics kit lets you assemble a fully functional Bluetooth 5.0 speaker complete with FM radio, a 12-LED music-reactive level indicator, remote control, and support for USB and SD card playback. It’s the perfect project for electronics enthusiasts, students, and makers who want a rewarding build with a genuinely useful result.

When you’re done, you’ll have a 2×3W stereo speaker that sounds great, looks cool, and you built yourself.

• Bluetooth 5.0 — wireless connection to phones and tablets (device name: JQ-BT)
• FM radio with auto-scan — memorizes channels and resumes after power-off
• 12-LED music level indicator — syncs with the beat for a dynamic light show
• Multiple input modes — Bluetooth, USB, SD card, AUX input, FM radio
• 2×3W stereo output — clear Hi-Fi sound; connect external speakers for more power
• Remote control included — adjust volume, switch modes, and change channels from a distance
• Digital display — shows current mode, volume, and frequency at a glance
• USB-powered — DC 5V via USB charger (5V 1.5–2.1A recommended)
• Available in black or transparent shell — show off your build or keep it sleek
• Installation instructions included

⚠️ Assembly notes: Soldering required. Components should be soldered from shortest to tallest. Pay attention to polarity on capacitors and LEDs (long leg = positive). For FM radio, solder a wire antenna to the antenna point. Double-check all connections before powering on. Do not reverse power supply polarity.

Specifications:
Bluetooth: 5.0 (name: JQ-BT)
Output power: 2 × 3W stereo
Rated power: 5W
Supply voltage: DC 5V (USB powered)
Operating current: 0.2A or higher recommended
Operating temperature: 0°C to 45°C
LED indicator: 12 LEDs (LM358 chip, adjustable sensitivity)
Weight: 380g

Package includes: 1 × Bluetooth Speaker DIY Kit (with shell, boards, and components)