ETSI EN 301 489-9-2007
電磁兼容性和無線頻譜事務(ERM).無線電設備和業務的電磁兼容性(EMC)標準.第9部分:無線電麥克風,類似射頻(RF)音頻鏈路設備,無繩設備的特殊條件
Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic Compatibility (EMC) standard for radio equipment and services; Part 9: Specific conditions for wireless microphones, similar Radio Frequency (RF) audio link equipment, cordles