Install the app on your friends mobile phones and play vibrating pranks!*How to use*1. Enter the number of seconds!2. Press the start button to start vibrating!*Precautions*Once the vibration is started, the vibration will not stop until the time second has passed. Please choose the time seconds carefully!*Tip*Turn off the mobile phone to stop the vibration.(Only you know!)
Vibration prank app
