ETSI EN 301 357-1
ETSI EN 301 357-1
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
standard published 06/01/2001 by European Telecommunications Standards Institute
