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ETSI EN 300 422-4-2017 Wireless Microphones; Audio Pmse Up To 3 Ghz; Part 4: Assistive Listening Devices In...2023-09-23

DIN EN 300422-2-2017 Wireless Microphones - Audio PMSE up to 3 GHz - Part 2: Class B Receivers - Harmonised...2023-09-19

ETSI EN 300 422-3-2017 Wireless Microphones;Audio Pmse Up To 3 Ghz;Part 3:Class C Receivers;Harmonised Stan...2023-08-10

BS EN 61094-5-2016 电声学测量麦克风比较工作raybet雷电竞电竞app下载地址麦克风的压力校准方法 Electroacoustics. Measurement micropho...2023-07-14