Once I bought a pair of these I stopped looking at other flip flops. - and bassheads will need some bass boost to get their fix. Bottom line, sent them back right away. The size is small and the cost is high so I was a little leery but if you?re not sure, cast away all doubts! i bought this headphone in 3K. If you normally have problems with comfortable fitting summer sandals - I highly recommend these. Traen piedras y tapas para cambiarlos cuando sea necesario. I?m very happy I found this ! Drilled a 1/4 inch hole into which I inserted the tip of the insert and then began to screw it in. Id call that good customer service.