My Bluetooth seems paired but no sound

It helps to state what iOS you are running for these kinds of problems. Depending on what app you are trying to use, you sometimes have to literally tell the iPad to choose your earpiece for sound for that particular app. Also be sure your bluetooth volume is up. This is independent of your main volume and can be adjusted only when connected. Simply use the volume adjustment on the side of the iPad. Some earpieces have their own volume control as well. Be sure to tap that up a few times as well.