Product features: This is a practical kit consisting of an MHM18 Bluetooth audio module, 8002 power amplifier chip, and peripheral components. Once assembled, it can connect to a mobile phone via Bluetooth or receive audio input through the audio jack for playback. The 3W speaker delivers improved sound quality when used with the enclosure. The transparent shell design allows a clear view of the internal structure, showcasing a sense of technology and achievement. This kit is suitable for teaching and training in basic electronic technology, as well as for electronic enthusiasts and beginners to enhance comprehensive practical skills. Kit Name: Bluetooth Two-channel Stereo Speaker Production Kit Power Supply: USB 5V (5V2A fast charging adapter recommended) Working Voltage: 5V This electronic DIY kit helps users learn basic electronic knowledge and circuit principles while practicing soldering skills in an enjoyable way. Ideal for kids, students, or DIY enthusiasts. Note: Components require self-soldering. Color: As shown in photo Material: Plastic Package Contents: 1 x Electronic Building Kit Note: Other items not included. Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement tolerance: +/- 1-3 cm.