ÖVE/ÖNORM EN 300422-4 V2.1.1:2017-08
Действует
Wireless Microphones; Audio PMSE up to 3 GHz; -- Part 4: Assistive Listening Devices including personal sound amplifiers and inductive systems up to 3 GHz; Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU
