Typically Id wear specific dance heels but I didnt have my shoes with me and these Sam Edelman heels were comfortable enough for me. Comfortable buds and they fit well. Great support and heel comfort. If you only need a place to hang your keys, this might work. I love the look of these shoes-- theyre so cute! These things are like walking on clouds! so much more comfortable and i won?t wear them without these! I didn?t really look at the instructions and they went up in about 10 min. Id quess between the 6k - 12k range for highs and 70hz for sub and 175hz for lows and 400hz - 800hz for mids. Best slippers I?ve ever bought I have very flat feet and suffer with aching feet lower back pain all have improved significantly since wearing these slippers.