Retail trade of radio and television appliances and other audio-video appliances for domestic use, such as video recorder, cameras, hi-fi equipment, etc.
Electro-technical installation works at buildings
Wholesale in electronic devices and communication devices as well as parts thereof
Retail trade in communication equipment in specialised shops
Services with regard to security systems
Telecommunications
Setting of telecommunication systems and computer installations
Wholesale trade of audio and video appliances: radios, televisions, audio systems, video recorders, etc.