Product features: This is a practical kit that includes 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 a 3.5mm audio jack for playback. The 3W speaker delivers improved sound quality when used with the enclosure. The transparent shell design allows clear visibility of the internal components, offering a technological and educational appeal. Ideal for teaching and training in basic electronics, this kit is suitable for electronic enthusiasts and beginners to enhance hands-on practical skills. Kit Name: Bluetooth Two-channel Stereo Speaker Production Kit Power Supply: USB 5V (5V2A fast charging adapter recommended) Operating Voltage: 5V This electronic DIY kit helps users learn fundamental electronic concepts and circuit principles while practicing soldering skills. Suitable for children, students, or hobbyists. Note: Soldering of components is required. 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 color variations between the image and the actual product. Measurement tolerance: +/- 1-3 cm.