I will try to save you some time. Nice, comfortable flip-flops. Its a little big but can work with. IF YOU ARE LOOKING FOR A PRODUCT TO FIND YOUR KEYS OR OTHER ITEM ---- try this! The glasses arrived really nice in its case with everything in it but they are not authentic and they are not polarized. I will definitely be returning these. Noise Cancellation: This wasnt my top priority (sound quality was), but I gotta hand this one to the XM4. I I ordered this style because a style I bought previously and love, is not available. Not snug enough to hold foot in place. both 800s and 820 take eq like a champ, impossible to overdo it, eq amps will clip before the headphone drivers overextend.