What is this white / copper-ish sticker on my new MG4 windshield?

[Fluffykins]

Simple RFID tag. Presumably for stock control, etc. How many would you like?

50 pcs RFID UHF Passive Smart Label Tag Sticker Antenna Alien 9640 H3 | eBay

 

[ok86]

Use the V2L plug in a hair dryer and gently peel it off