Hi! Glad you found us. The volume button is the long rocker button on the edge. However, if you have muted the iPad you may have to check two other places. Just above the volume button is a smaller button that can be set to mute the sound or set to lock the screen orientation. Another place to check is to double press the home button or use a 4 finger swipe up to show the bottom bar. Now swipe to the right to see various controls that include volume and mute or lock screen.