Electro harmonizing stickers
Satellites, Telephon, Mobile, TV, Computer, Radio,
etc. and clean reception

Engraved gold foliage stickers come in a set for five appliances with five different symbols (use each sticker according to the product guidelines for either mobile phone, computer, television set, radio etc.) The cheap version which everybody can afford.

goldfoil-sticker
for radio interference suppression; with symbols on
foil, 1 foil for 5 devices;

radio interference suppression for Elektro-Pumpen

radio interference suppression for gas-, oiltanks etc.