Tech Will Save Us, Synth Kit | Educational Music STEM Toy, Ages 13 and Up Build three different synths (Atari punk console, stutter, and dub sirens) and enjoy the unique sound output Learn about pitch, frequency, and volume as you create your own masterpiece No soldering is required with this kit, so you will be able to admire your work quickly The synth kits comes with electronics to create 3 synths and require a 9v battery and a computer or tablet with internet access Recommended for ages 13 and up and requires approximately 1 hour per synth