Koss Porta Pro Wireless 2.0 - Classic design meets modern tech

Koss sent me their new Porta Pro Wireless 2.0 The Porta Pro is a well known classic headphone from the 80s that now got its wireless version. This one features Bluetooth 5.2 and offers more than 20 hours of battery time. I will shortly unbox and review them here. You can get the Porta Pro Wireless here: https://in-akustik.de/porta-pro-wirel...