As though they are made to be worn on both feet, left to right and vice versa. I like the charging base to keep it in when not in use. After hours of troubleshooting, I found that the problem was related to it trying to decode Dolby Digital Plus (pretty common standard for most devices). This however is necessary to cancel noise out. So I can?t speak to the thickness of other cases and it working with those. Perfect gift! I have really wide feet and wear 10. Shipping was fast but plastic package was shattered in places leading to finding shards of sharp plastic stuck between the heatsink and pcb itself. One thing to be aware of: the bike arms are designed for round frames and not frames which are more flat (e. Mine came bent in a very awkward way to where it will not sit flat on the wall.