【實用娛樂app】Speech Jammer Pro|最夯免費app-gigacircle

EDIT: For those of you messaging me that the app does not work properly, YOU MUST use headphones that has a MICROPHONE INPUT with this app. For best results, it's recommended you use your Apple headphones.The best speech jammer app available. It has an auto calibration feature and manual calibration for the feedback delay in order to fine tune the speech jammer.Try it out! It really works.