I use these for sleeping because the SleepPhones are too warm. They run large - I have an average sized head and the medium slips off. I'm ordering a small.Possibly due the size issue, I find that the speakers drift. Every night I have to re-adjust them so they are over my ears. Never the less, I enjoy them very much and would suggest them for anyone who has trouble sleeping.UPDATEI ordered a size small, and I received extra-small. In addition, the Velcro closure on the RunPhones I received is damaged. Really unhappy about this. I like this product, but going forward I would buy from a brick and mortar store so I can be sure what I am buying is in good condition and the right size.UPDATE 2 I have to reduce the number of stars to two. The extra small size (sent incorrectly) gives me a headache, and the speakers drift away from my ears in use. The run phones simply don't work for sleeping.Wow. It is REALLY comfortable to sleep in. So, I am terrible and cannot sleep without something playing on my iPad, which half the time sits between my husband's pillow and mine. Before this nifty device, my iPad with the volume at a 1 would still disturb my husband but he would try not to complain. But now I have been using this headband for a few days and love it. Cord is whisper light, plenty of length. I went with a Medium size, but kind of wished I went for a small. Luckily I can sew and shortening it 1/2 - 1 inch will be easy. So if you are the fence on size, you might want to be conservative. Now I can put on my favorite sleeping movies, the Harry Potter series, and my husband can avoid listening to them nightly!I have mixed feeling about this. I don't use them to run in, I use them as my SleepPhones. This model was cheaper at the time of purchase. I took the headphones out and put them into one of about 5 different headbands I already own from this company.I am unable to sleep without music and these headphones are perfect for sleep. I do use them as well when I walk and they are perfect for that too. I swap out the headbands to the RunPhones depending on weather.Problem is the cord is horrible. It gets twisted up so badly I am only getting if I'm lucky 4 months of use. For the money I'm spending I should get the wireless, but I hear there are issues with them as well. It's a no win situation.Medium was too large, so I had to return and order Small. The concept is great, but I still have a challenge keeping the headphones on my ears without the top of the band slipping down on my forehead, because then the whole thing starts slipping off. I can't stand ear buds and headphones, so I hope the fit of these will improve!These were OK when they worked--the sound quality wasn't great but I was happy with it for the price. The headband was a bit large but stayed on. I didn't use it much because it was a little too big, and not that comfy to sleep in with the hard speakers under my ears. But despite not much use, when I went to use it a month ago, it had just stopped working. Put it away to try and fix later, and I've tried everything I can and no sound will come out of it anymore. People usually review when they first get something--if you want to use it for a year then throw it away, this could be a good product for you. Otherwise, maybe not.I LOVE this product!! at last I can listen to my sleep/hypnosis audio and at bedtime, DEFINITELY SUGGEST THIS PRODUCT! The only suggestion I would make to the creator of these is to make them in an even lighter more cotton headband, like the ones we wear to hold our hair back. I purchased the RUNphones because it seemed like the lightest material option they offered. I do still find this material (lightweight polyester) to cause a bit of "sweating", but that could also be because I'm in menopause! Sill, I love it!Used these for sleeping so the SO isn't disturbed by my podcasts. Honestly these headphones surpassed my expectations in terms of durability and comfort. They lasted me about 1.5 years so not as long as I'd like but more than the warranty period of one year. These phones have been abused with the cords rolled up underneath me while I sleep. The only thing I'd change is make them wireless with wireless charging. Maybe in a few years....I bought this last week, and it arrived with only one earpiece working, (also the sizing is way off, a small should fit most people with really short hair). Returned and replaced it; received the new set yesterday and I tested it just around the house and it seemed to work fine. Got ready to go running this morning and to my surprise 1 earpiece stopped working again!! I tried to adjust the earpiece but there's not much you can do since it's inside a piece of cloth with wires connected. I'm gonna give them one more try since I love this idea, acoustic seems to be the only seller of such a product.I do like it, but find it hard to get the earphones in the correct place inside. Very hard to move around, or to know which direction the speaker faces. Could do with some design improvement, but otherwise, still a good product - just not an amazing product.Bought this for my Daughter. Material for the head band is very cheap and flimsy. Not a head band type of material at all! It quickly became looser the more she used it. After 4 times of using it for walking, it will no longer stay on her head. Sound is fine, when the speakers stay in place. But the purpose of buying this was because she cannot put ear buds in her ears. So she needed something to put over her ears for running, but she cannot even wear them for walking. She wanted to try them more than once to see if they would settle. And they did not. They are not as advertised. And to late for us to return themJe l utilise sous une tuque dans un casque pour faire du snowboard. Idéal pour entendre une musique de fond.SuperSound quality is fine, but headband is too loosey-goosy for me. Won't stay put.Size is a little big for me. But otherwise works good.