Sound is goodBattery life battery ? is okEar fit is ok but the batter pack is large and is in a POOR spot that pulls the ear buds out and is never comfortable unless you let cord hang in front and then it falls out . For such a large battery you would expect long life NOT TRUE just average battery compared to brand $20 more .Value : good value for what you pay for . If battery pack was smaller or closer to earbud this would be great for less than $20 however due to this it’s bulky and not comfortableThese are great it just you cant be too far away while having these on they will glitch outGood Heaphones to do Exercise and Calls!! But Short Batery life like 2 HoursI liked everything about these. Just wish they had more than one in a bag to share them with my family cause I love them too.They worked for me but the wires are fragile. One side snapped off fast and easily. Didn't last long enough.I need to use a large safety pin on the shoulder of my shirt to keep these from falling off at work. Battery does not last an eight hour shift.sound is loud enough to be heard over machinery I operate. Good for the price.As soon as I got the headphone, when ahead and opened it and put it on the charge (I've been told that charging before use helps battery life so yeah). Then BIG PROBLEM. As soon as I plug the usb into a wall plug I smell burning rubber. Not knowing where it's coming from.I continue to try and plug it into the Bluetooth (struggled due to New port so stuff fit) and I get burned from the usb. I tap the main wire to verify because I was so confused on what just happened and I get burned again. By now the smell of burning rubber has filled my room and the solid plastic parts on the actual insert parts are getting hot too. So I unplug it and immediately toss the wire into the trash after it was cool enough to touch. As for the actual Bluetooth itself, no burning or smells yet so after charging I will review the product itself. I just really needed to tell others about the usb, when you get it just toss it so you can avoid getting burnedThe sound quality of this product is excellent. I needed it to use as a sound system and connect my phone while I was operating a tractor for an hour at a time. The weight of the small control switch seems to be enough to constantly pull the ear buds out, either one at a time or both within a short time. I have tried a few different ways to "wear" this product but continue to have issues how it should be worn.If anyone is able to keep the ear buds in place while being active, please contact me.