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Voice changer

Velleman MK171: Voice Changer Minikit

Velleman MK171

DIY Voice Changer Electronic Minikit

Have you ever wanted to sound like a robot? Make your own voice changer with the Velleman MK171: Voice Changer Minikit. Use the pitch buttons to make your voice lower or higher add a vibrato effect. This kit is complete with a built-in microphone and amplifier (1.5 Watts @ 4ohms) with volume control. Attach your complete voice changer kit for full effect.

If you want more power, the voice modulator also includes a line-out function so you can plug it into your own amplifier. Use it for parties, plays, recordings or a part of your Halloween costumes or Cosplay.


  • Modulate your voice to sound more robotic
  • Add vibrato to your voice and change your voice's pitch
  • Includes built-in microphone, power amplifier and volume control. Attach to a speaker - Not Included
  • Perfect for Cosplay and Halloween costumes


Output Power 1.5W, 4 Ohm max.
Power Supply 9V battery
Dimensions 3 in. x 1.8 in.

Additional Information

Difficulty Level 2


Assembly instructions
Illustrated manual explaining how to build the mini-kit

Info Sheets

Overview of Velleman modules that are equal to D.I.Y Kits
This sheet is useful when you want to know which modules you could find in the do-it-yourself range of Velleman Kits and minikits.

 Warning: this product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov/product