Very interested in seeing how long a charge lasts. Crocs are a go-to for all day comfort. 0 version for 2 years. But the strength of its attachment to a wall (in this case a solid wood vertical support beam), feels a little "iffy". And the patchy wax spots? Those dont peel off. I hang them on my closet wall. So, essentially theyre always charging. I took away one star for the directional nub on the bud. Though I must admit I was just looking for a cheap good looking slipper, didnt imagine it would be this good. I have another Burts Bees onesie thats 12 months and it fits him better than this one does.