Looking at Auvio headphones online, it appears they are very straight forward and simple to install. You might check the following:
First, a good connection of the audio cable between your TV set and the input to the Auvio base station.
Second, fresh (or fully charged) batteries in the headphones themselves.
Third, that your TV volume is turned up
It looks like there are two power buttons you need to operate, one on the base and one on the headphones. Make sure both are on.
Turn up the volume knob on the headphones themselves.
I see a lot of bad review about these headphones, so if checking all of the above doesn't help, you might take them back to where you bought them and seek their help/advice.
I had problems with my wireless earphones and ended up using the digital audio out connection on the TV. This works fine, but you do need a converter box to get from digital audio out to your headphone jacks. This box cost me about $11 on Ebay. My volume on the headphones is now separte for the TV volume which I also like.
First try you earphones on another device just to make sure they work.