My headphones mode continuously is on! I can’t hear my iPad!

In such a situation, if you've already tried (to no avail) a "forced" restart of your iPad:

• On an iPad with a Home button: Press and hold the top (power) button and the Home button at the same time. When the Apple logo appears, release both buttons.
• On other iPad models: Press and quickly release the volume up button, press and quickly release the volume down button, then press and hold the top (power) button. Only when the Apple logo appears (it might take 20-40 seconds), release that button (ignore all other screens that might appear).

take your device to an Apple Retail Store or Apple Authorized Service Provider for inspection. Don’t have a nearby service location? Contact Apple Support.

Regards

Giulio

I had the same problem and I did try FaceTime call to someone, my iPad works again. The headphones mode gone. Good luck