I need to check my sets of muffs. Recently have found a number of remotes that have the leaking battery issue. Last evening told my wife I think I better check the muffs as none of the, have been used recently. Don’t want to have to shell out the big bucks to replace them.My ear muffs weren't working last night. Just checked. the batteries had started leaking, so I had to clean that mess up. Tooth brush with wet baking soda.