These were purchased as a birthday gift for my husband and here is his review:The fit of the socks were perfect and they stayed in place with a taller boot. The battery packs stay above the top of the boots around the calves. Someone with shorter boots may have a problem with the sock sliding down due to the weight of the battery pack. I could barely feel the weight of the battery pack once installed in the small pockets on the sides of the sock. Each sock was labelled either Left or Right. The battery packs sat on the outside of the leg. Guessing so they would not hit each other while walking. When I first put on the socks I could feel the heating coil but could not feel them after walking the 1/4 mile to my tree stand. When I first connected the battery they turned on instantly. I didnt want them on right away because I didnt want my feet to sweat. It was easy enough to turn them off but something to keep in mind. When it did come time to turn them on it was a pain because I had to unzip my bibs and pull up my pant legs. Maybe not a big deal to some and Im sure hunters werent the target audience but that's a lot of movement. Turning the Ororo Vest on is just a simple click of a large button. The button to turn the socks on is tiny. Once on they worked out great. They heated up quickly and kept my toes warm. I was able to sit in the stand all day without cold feet. I loved that the charger is a dual charger that allowed to charge both batteries at the same time. Time will tell how the socks will hold up. Hoping I can get a few seasons out of them and the batteries can still hold a charge when only using them during hunting season. Price was a little high for a single pair of socks but they worked perfectly so Im not going to complain.If Ororo reads these reviews it would be nice if these could be Bluetooth enabled where I could sync it to my phone and controlled from an app to turn these on/off. Along with my vest it would be cool to control everything from my phone. Make it happen and I could be the real world beta tester.Original review below. Ororo ended up shipping me new socks that do work. It took about a month from the time I bought the original socks to the time of receiving the replacement socks. The replacement socks are different. The heating elements cover the entire sole of the sock instead of just the toe area. New model? Idk. But they work. Their customer service rep was polite and attentive. I would give the socks 4 stars for quality but I left a 3 star review because it took a month to get working socks.I purchased several Ororo heated items for my wife and they all work as expected. Nice and warm. Heck the high setting is so hot she doesn't run it for very long. These socks barely heat up on the high setting. The warmth is barely perceivable. I charged the batteries up and tested them out for a day at the ski slope. They didn't seem to do anything. I got back home and put in another fully charged set of batteries and let them go on high for 15 minutes. Still no heat. I got out a laser thermometer and they barely hit 74°F. I got out a digital meat thermometer to see if the laser didn't register correctly. It also read 74°. The description says they do 110° on low and 140° on high. I had to put my hand inside the sock directly on the heating pad to see if anything was happening and could barely feel a difference between the heating pad and rest of the sock. Did I get a bad pair? Are they all this bad? These things are junk. They don't warm up at all.I have terrible circulation in my feet and looking at the reviews before my purchase I knew it would be a 50/50 chance I would like the socks going off of the mixed reviews but no boot or extra socks have saved my feet from the numbness yet so I had to try them.I used them twice now and it brought my feet back from losing circulation after arriving at a cold cabin that had to be warmed up from a fire. And another time while standing outside in the heavy snow for about 1.5 hours.The socks are a bit snug, I would recommend going up a size and after being outside for that long my heels could start to feel the coldness but my toes were doing pretty good still!I bought a pair for a gift for my spouse. Loved them so much we decided to give them as gifts for our workers so we bought 5 pair more. Everyone loves them. They are warm and have the levels of warmth to keep you just right. They wash well, and the battery last a long time. We absolutely are over-the-moon with these. This company rocks!!I like the quality and the comfort of this product.Heats up pretty good, but the package i received has an issue.1 of 2 batteries won’t charge so i’m only left with one which really inconvenient if i need 2 batteries.but overall i like the productI obviously have circulation issues in cold weather which was never resolved with thermal nor wool socks. Tried cheaper battery heated socks... you get what you pay for. These from OROCO exceeded my expectations. They fit snug, easy to put on, charge up within 4 hours and kept my feet warm on a 30 degree motorcycle ride for over 3 hours at mid setting. Highly recommend.ParfIt pour garder les pieds au chaud.