Labeled box and shoes as a 10. I think this product is AMAZING! Dont hesitate on this one. The main difference, between this and the normal X07 is that you can hear your own voice, which personally I love - it allows you to hear how loud youre being so that you dont get too loud in party chats. The arch support and cushion in these sandals is wonderful. it was a 9 I really like the design and style/color pattern of this slipper and will buy another pair in another color since it took me several years to find this particular slipper. After performing a good long over night first-time battery charge, I used them for six continuous hours glorious comfortable hours. I when out to find a pair of headphone to replace my old 10 year old bose headphone. I love that it includes a key chain.