Took them straight out of the box and went for a run. right out of the package. Contacted Amazon - got this replacement. Im in everything 8. I bought an xl and an xxl just to ensure fit. Sound is pretty good, but for the price and not functioning Alexa feature you can buy a better top-brand Bluetooth speaker. My 95 year old mom loves these. Think the item is perfect what what I needed . These are working wonderful in our hot tub room. They are comfortable, but the soles are hard and make an annoying clicking sound when walking on hard floors.