I was hunting the beach yesterday and went to take my headphones off and one of the muffs fell free of the headband. After much patience and frustration I was able to get it back in the slot. Today after a recharge the headphones would not pair up with the control unit causing me to abort my hunt. No matter how I turned the headphones off and the control unit off and on nothing worked. Anyone else have this kind of problem? These headphones IMHO are not very durable.