hello. My name is***** can help you with your question.
If this is the Polk audio remote that takes the to coin batteries then what you have to do to insert them, is to pull the small tray out of the bottom of the remote. It's a plastic tray that when you pull it out you can just drop the batteries in and then slide it back in. I will see if I can find a picture of it for you. And let me know if this matches your remote or if you have a different remote.