Make your voice sound like a robot with this cool voice changer solder kit. Add vibrato effect, or use the pitch buttons to make your voice sound lower or higher. It also comes with a built-in power amplifier and microphone--simply add a speaker to the unit. Great for pranks, as a novelty toy, or as a stocking stuffer.
Great tarantula specimen for the science classroom!
See the solar system in action!
This quality Dobsonian style telescope features a 76 mm aperture reflector optical tube.
Build a magnetic levitating train with this science fair project kit!
Cool new Pi tee featuring ultra soft and light blue 100% cotton shirt.
Easily assemble a working alarm motion detector!
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