Sound was great initially (perhaps a bit too loud, and no volume control). I’m reasonably experienced with renovation work. Late delivery then I get these so called sport headphones that are supposed to be waterproof lol I would not dare test it out. Cant beat the price for that quality and the bluetooth capability. I wore them for 1 week (only inside the house). Los mejores en este aspecto son los Sony, tienen todos los codec de audio conocidos, incluído LDAC. 5mm Head phone jack and Ive been able to connect through Bluetooth, Sony XB20 speakers for surround sound. there is no way that these are true to size. Die neuen Adiletten wurden jetzt zu Besucherlatschen umfunktioniert. I HAVE ONLY RECENTLY DISCOVERED THEIR PRODUCTS AND SO FAR, I CAN NOT FAULT ANYTHING THAT I HAVE BOUGHT BY THESE PEOPLE.