Feature Highlights: 1. Recording Function – In USB/TF card music playback mode, press and hold the mode button to start recording. Press and hold again to stop recording. 2. FM Radio – Comes with an external antenna for stronger, clearer signal reception. Default frequency range: 87.5MHz–108.0MHz. 3. Bluetooth 5.0 with Call Support – Stable connection, reliable transmission up to 10 meters, and compatible with infrared remote control. 4. Dynamic Sound Quality – Built-in amplifier delivers loud, clear audio without distortion. Features LED color lights that sync with the music rhythm for an immersive atmosphere. 5. Easy DIY Assembly – Perfect for learning basic electronics and soldering skills. Ideal for hobbyists, students, and parents looking for a fun project with kids. Product Details: This DIY Bluetooth speaker kit is designed for hands-on learning and practical fun. It uses a durable anti-shock audio amplifier chip to ensure powerful, distortion-free sound. The kit includes all necessary components for assembly—just add soldering! It supports USB/TF card playback, FM radio, and Bluetooth 5.0 for wireless streaming and hands-free calls. Powered by DC 5V (a 2A fast-charging adapter is recommended for best performance). Specifications: - Working Voltage: DC 5V - Working Current: Approx. 1A (varies with station/music) - Standby Current: About 40mA (no audio playback) - Output Power: 2×3W - Bluetooth Name: JQ BT - Material: Plastic - Color: As Shown - Package Includes: 5 sets of DIY Bluetooth speaker kits (components require soldering) Note: Components are unassembled and require basic soldering skills and patience to complete. Slight variations in product appearance may occur due to different production batches, but this does not affect performance. Colors may differ slightly from images due to lighting and screen settings. Measurements allow a tolerance of ±1–3 cm.