Features Learn and Play at The Same Time: This DIY Bluetooth speaker allows kids to discover how the speaker works when building their own speaker, kids can explore the world of music through hands-on activities that are fun and meaningful Stereo Surround: With this wooden bluetooth speaker box kit, you can achieve high quality stereo surround, if you like DIY, this music speaker kit is something you can't ignore. Easy to Assemble: Our DIY Bluetooth speaker kit has clear and easy to understand instructions, and the assembly steps are not difficult, so you can easily assemble. Perfect Gift: This DIY wooden box bluetooth speaker kit is the perfect gift for kids aged 7 to 14. Tested for safety, all blocks are made of wood without chemical treatment, safe and environmentally friendly, creating a safe entertainment environment. Complete Accessories: this stereo Bluetooth speaker kit includes everything you need when putting it together, you can immerse yourself in it and enjoy the DIY fun without worrying about the lack of accessories. Specification: Item Type: DIY Bluetooth Speaker Kit Material: Composite wood Uses: Handcraft, puzzle Teaching Paint Material: Wood without paint Wooden Building Block Type: Building blocks Battery: 1.5V AA battery x 4 (Excluded) Package List: 2 x Building Block 1 x Battery Box 2 x Speaker 3 x Terminal Wire 1 x Screw Accessories Package 1 x Switch 1 x Screwdriver 1 x Circuit Board Note: Because the dry battery discharge current is limited, you are advised to set the music volume of mobile phones (other devices) to 60 to 70 percent Package List 2 x Building Block 1 x Battery Box 2 x Speaker 3 x Terminal Wire 1 x Screw Accessories Package 1 x Switch 1 x Screwdriver 1 x Circuit Board