UNE-EN 301357-1V1.2.1

ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM);Cordless audio devices in the range 25 MHz to 2 000 MHz;Consumer radio microphones and in-ear monitoring systems operating in the CEPT harmonized band 863 MHz to 865 MHz;Part 1: Technical characteristics and test methods (Endorsed by Asociación Espanola de Normalización in November of 2021.)