Now, a note on the battery. Yes, you can sneak it away from your partner (hehe) more comfy than the squishy ones I have. Haven’t dropped a sandal yet! There is little to no memory foam- after one day, I couldn’t feel any. I love how Bert was so passionate about being Snappsys friend and I think theres most definitely a Snappsy and Bert in our lives. I appreciate that the strap is soft. So I emailed them, expecting not to hear anything for a few days and within a few hours I received a email back, and long story short! Buy it if on a budget or dont want two devices to do the same thing. Also, unlike other people it seems, I can’t walk around with them - they fall out of my ears. Overall, solid soles and seem to have a solid design.