It's got a flexible TPE deal with on high, silicone bumpers throughout the edges and ABS+Polycarbonate exterior and grill. The IP65 ranking Also marks it like a resilient system in most environments. So as to get around this, many companies offer you the chance to link up multiple speakers https://www.bluetoothspeaker.top/bluetooth-speaker-super-bass-wireless-support-tf-card-with-oem-odm/