Procurement of technical communication, hearing and warning aids:

22 18 24 Wireless microphones and installations (FM-systems)

22 18 27 IR-systems for transferring sound

22 18 30 wire loop equipment

22 18 33 Mikrophones

22 21 06 Conversation amplifiers

22 21 09 Conversation apparatuses

22 39 03 Displays and monitors

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