About this item Bluetooth Speaker DIY KitNo soldering iron required. This kit includes laser-cut wooden components, 2 pcs of 2-inch 4-ohm 3W full-range speakers, a dual-channel Bluetooth amplifier board, and clear instructions. It requires 4 batteries (not included) for power and can connect to mobile phones or computers. STEM EducationAssembling this STEM project helps develop children's hands-on skills as well as their logical thinking, self-confidence, and teamwork abilities. It's perfect for school STEM science experiments, allowing students to learn about engineering and circuits. Superior Sound Quality and Easy ConnectionEquipped with two high-definition speakers that accurately reproduce each note with rich, noise-free sound. Enjoy connecting your phone to the wireless speaker effortlessly and indulge in your favorite music. Gift for KidsAll pieces in the DIY crafts kit are made of wood and safe materials for scientific experiments. Once assembled, it plays beautiful music, maki