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Amazon.com: STEM Projects for Kids & Adults Build Your Own Bluetooth Speaker - Science Experiment Electronics Kit | Beginner's Starter DIY Set,STEM Gifts for Teenage Girls + Boys Ages 10 and Up (
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Amazon.com: CALIDAKA DIY Bluetooth Speaker Box Kit Electronic Sound Amplifier,Build Your Own Portable Wood Case Bluetooth Speaker with Sound,Science Experiment and STEM Learning for Teens,Kids Adults : Electronics
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