This is the 3rd time i am placing an order for thesse glasses. when they work they are very very good, but when they dont they are horrible . I am frustrated that the charge feature quits working all together within a couple of months . i love the glasses when i want to read in bed , and they work exactly as described on 鶹. HOWEVER , 1 pair quit charging altogether , and a second pair would only charge on one side. I am going to give them one more chance , and like my last order it will be for 2 pairs . i ordered 2 pair on my last order and I am already down to 1 pair. i am not confident that this pair will last, so perhaps throwing good money after bad , I will give them 1 more try. Will let you know. Jack Babcock