EUT TPE：Subclass of Class 1_20_Non-specific short range devices_433.050 - 434.790 MHz
EMC Std：Article 3(1)(b)_EMC_ETSI EN 301 489-1 V2.1.1 (2017-02)_Part 1: Common technical requirements;
Health ：Article 3(1)(a)_Health_Cenelec_EN 50360:2017_Publication Product standard to human exposure to electromagnetic fields in the frequency range from 300 MHz to 6 GHz: devices used next to the ear
Safety：Article 3(1)(a)_Safety_Cenelec_EN 62368-1:2020+A11:2020_Audio/video_ information and communication technology equipment - Part 1: Safety requirements
Article 3(1)(a)_Health_Cenelec_EN 50360:2017_Publication Product standard to human exposure to electromagnetic fields in the frequency range from 300 MHz to 6 GHz: devices used next to the ear
