Könnte mir jemand sagen, ob es sich hierbei um eine Steckdose handelt? Ich muss nur eine Frontplatte und einen Elektriker kaufen?

My apartment has very, very few electrical sockets. But lots of these ‘sockets’ covered by blank face plates.

Are they electrical (as opposed to coax etc), and just buy a normal face plate and install?

> I just need to buy a face plate and electrician?

I know there are some very sexy handymen out there, but buying people is actually illegal.

The transparency plastic is there to put a caps from company Feller and brand edizio. Is not a connector usable like is see.

https://www.galaxus.ch/fr/s4/product/feller-ediziodue-colore-accessoires-gamme-dinterrupteurs-6215407?supplier=406802&utm_source=google&utm_medium=cpc&utm_campaign=PMax%3A+PROD_CH_SSC_Cluster_7%28C%29&campaignid=20448036879&adgroupid=&adid=&dgCidg=CjwKCAjw9p24BhB_EiwA8ID5BuAGMxA5ohBuIqk_obUlKncFdCK4vJoZP2FewqRg58j5eJUg5xo6XxoCDrEQAvD_BwE&gad_source=1&gbraid=0AAAAADmCc4MZH2oCCDeZwmd7M0NGWJ52k&gclid=CjwKCAjw9p24BhB_EiwA8ID5BuAGMxA5ohBuIqk_obUlKncFdCK4vJoZP2FewqRg58j5eJUg5xo6XxoCDrEQAvD_BwE&gclsrc=aw.ds

Is usually an electrical distribution box (boite de derivation in French)

If you want sure what is behind remove the metal plate from the wall and take a new picture for us.

can you take a picture from the stuff inside hard to tell otherwise