Beyerdynamic XELENTO WIRELESS Quick Start Manual page 7

Xelento wireless – In-Ear Headphones 7
Connection and cable replacement
To detach or fasten the cable, hold Xelento wireless by
the earphone housing and by the plug connector. Do not
pull the cable directly; you might damage the cable or
the earphones!
The right-hand side is marked by a raised dot on the ear-
phone housing and on the cable end.
Disconnect cable
Connect cable