DIY: This speaker DIY kit contains parts that can make a speaker, and is a good way to learn soldering. Good performance: This wireless speaker DIY set supports bluetooth-compatible and stereo sound, providing a good sound effect. USB port: This wireless speaker supports USB playback, so you can connect a U-disc to it and . Teach tool: This speaker DIY kit is a good way to train students and improve their soldering and hands-on skills. Easy to use: This bluetooth-compatible speaker contains remote, making you can easily adjust volume. Colour:As Shown Material:plastic Package Contents: 1 set * shell 1 set * parts 2 * speakers Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.