The manufacturer forbids its use on the neck, face and neck. This warning is certainly not without reason. I have not tried it myself on these areas.

Instruction manual page 8

https://static.digitecgalaxus.ch/Files...

The Lumea for Men is not designed for use above the shoulders, so Philips warns against use on these areas of the body. Shavers, multigroomers and / or beard trimmers from the extensive Male Grooming range are better suited for this. Have fun trying it out :-)