Koss Porta Pro
12 h, Wireless
Question about Koss Porta Pro
Mmh, apparently these headphones don't work with every smartphone. I have an iPhone SE, but I can't connect the headphones with Bluetooth. It does not find the device . Annoying...
The Koss Porta Pro has Bluetooth version 4.1.
4.1 has been around since 2013 and is basically supported by every iPhone SE.
Maybe you have other devices in the room that want to connect to the headphones?
see also here: https://discussions.apple.com/thread...