It?s bigger than I expected. You can?t check one out then drive to another location and compare. The battery life seems to last a bit longer. I usually buy nothing but corsair, my maaachine looks like a billboaard for their compaany. I bought these as camp shoes for a buddy of mine, and he floats between a 16 and an 18 depending on the brand. It wasn?t the exact same as the original one in our Newhouse but the number code matched. Easy set up and cool white color with led white light is also a great addition. couldnt get my foot into them. I normally wear anything between a size 8 or 9. The clip that mounts to the earpiece section is similarly too large.