[Bluetooth Amplifier DIY Kit]: The Soldering Project DIY Kits are used to installed to an electronic transparent stereo speaker with high-power speakers, beautiful music Spectrum and transparent Acrylic shell. This Electronic DIY kit help you to learn basic electronic knowledge and circuit principles, and practice soldering skills enjoyably and your kids, or students, or DIYers. [Great Electronic Soldering Project]: Great School Science Project kit for soldering practice and also suitable for family education. Not only to improve your soldering skills, you will also will be more familiar with electronic components and learn more interesting electronics things. But please note,this soldering kit requires certain foundation of basic electronic theoretical knowledge and welding and hands-on ability. [Easy Installation]:The bluetooth module board is soldered and can be used directly after connection. You only need to solder the spectrum kit, connect the wires, and assemble the shell. Fun and entertaining, bluetooth Speaker by yourself, a cool project and challenging enough to be fun. About power: 5V mobile phone charger or computer power supply can be used, the sound quality will be better when the current of the power supply is 2A. [Functions & Features]: Two 3W 4ohm Speakers. Colorful 12-channel music spectrum, cool lighting effects while listening to music, visual and auditory enjoyment. Support power off memory, support TF memory card/U disk or Bluetooth to . Two control methods, Bluetooth connection or infrared remote control. After disconnecting Bluetooth, it will automatically switch to TF card or U disk. Style: 12-channel music spectrum bluetooth speaker Colour:Transparent+black Material:Acrylic + electronic components Package Contents: 1 * Spectrum Bluetooth Speaker Kit with remote control(The color of the remote control is random, the color of the speaker is random, and the specified style and color are not accepted) Only the above package content, other products are not included. Note: Light 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.