Hello Cyb3rG

When describing the features of these headsets, the terms "peripheral connection" and "peripheral signal transmission" are applied differently, and therefore cause confusion.

-> In the case of the "older" type 5832442, these two terms refer to the connection of the base station or charging station with the PC: This is connected (wired!) to a USB interface of a PC (laptop) with a USB cable. The connection between the base station or charging station and the headset is a DECT radio link. I have 2 such older types that work exactly like this.

-> With the "new" 17762873 (or MS type), the base station or charging station is also connected by wire to the USB interface of a PC (laptop).
Obviously, the terms "peripheral connection" and "peripheral signal transmission" refer to the DECT radio corner between the base station or charging station and the headset.

The two products mentioned above are the same in terms of interface (to the PC/laptop) and wireless connection of the charging base to the headset. Note that
-> The connection of the PC (laptop) to the base station is always wired.
-> There is always an additional power supply (small plug-in power supply unit): The base station or charging station is NOT powered via the USB interface!

Complicated because the terminology is not applied consistently and clearly!
....because there are also other Pro-DUO headsets that do not have a USB interface and can only be operated on telephone systems.