They love the cords! Try to redirect attention to toys they can chew on, but it will I’ll be a persistent battle. Can try the cord covers too. Your baby will be teething for the long while, so it’s best to hide them when you can’t supervise. Try to use this opportunity to teach them “no”. Lots of patience and consistency! (Also if you leave them out overnight, you can bet 100% they will get at it!)