Wireless Audio System: This DIY Bluetooth speaker kit features a transparent acrylic housing. Once installed, it transforms into a beautiful Bluetooth speaker that can be used as a music player, a decorative element in your home, or even a contest entry. Smart Operation & Convenient Functionality: It features a good-quality amplifier circuit, a DC 5V power supply, and two audio inputs: Bluetooth and audio cable. You can choose the audio input you need. Stem Education & Skill Development: This soldering kit is suitable for all skill levels; it allows you to learn circuit design, sound engineering, and electronics fundamentals. It's an ideal choice for high school and college projects, and the hands-on experience build your confidence in DIY electronics. Easy Assembly & Complete Setup: The electronics project kit features clearly marked and labeled circuit boards, and schematics are included to trouble and make soldering easier. It's DIY kits, needs to finish by yourself. (DIY assembly version with housing) Color: Transparent Material: Acrylic Package Contents: 1 * DIY Bluetooth Speaker Practice Kit 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.