☆ The strength of vibration varies depending on the model. You can freely set the vibration pattern, so you can enjoy your favorite vibration massage. You can also browse websites within the app while using it. On some devices you may be able to strengthen vibration by: [Settings] > [Sound/Vibration] > [Vibration intensity] > > Set to the strongest level * This application cannot strengthen the vibration of the device native. * This application cannot be used on devices without a vibration