Easily rechargeable via USB port, and holds a charge for a very long time when fully charged! I have four pair of Samsung 3D glasses. 2 pair of battery operated, which you may want to buy a few batteries to have on standby, and 2 pair of these rechargeable glasses. These glasses at $49,99 each are worth every penny since they're so easy to recharge, and they hold a charge for a longtime when fully charged! It you don't have time to fully charge them, a quick and simple 2 minute charge will be enough to watch a full length 3D movie. They're very light weight and you don't even notice you're wearing them after a few seconds of watching a movie. I may buy a couple of other pairs for my friends and family for movie night. Great product and very user friendly! I really love the auto feature which they'll turn on automatically once you have a 3D movie playing via your 3D capable Blu Ray player. When you're done using them, take them off and they automatically power off to ensure longer charge life! Great job Samsung! My fourth Samsung Hi Def tv, but first 3D capable! I love Samsung's reliable products and technology!

The glasses are a little wide-fitting as far as the fit goes. That is to say that the "flexible arms" do require some bending in order to get the glasses to rest properly on the ear. Another thing, these glasses appear to work well with the Samsung UN50H6400AFXZA 50 inch 3D TV.

Not the most fashionable pair of glasses. I wish they were more durable.