I have to use the charging adapter to sit it on to charge it. Also it was very easy to assemble. This is completely unacceptable from a device commanding a $500+ price point- MW60 is less comfortable than MH40 when on the head/ears. I plan to purchase more of these sandals in different colors. They arrived at 11am-right before I was to leave for a day at the hospital and appointments. The shelf?s are NOT adjustable. At least it didnt land on anyones foot. - Speaker quality: Not great, especially compared to the two front-facing speakers of the 2 XL. Great for aging skin that still has a few years of use to go. I recommend ordering a size down.