EUT TPE：Subclass of Class 1_20_Non-specific short range devices_433.050 - 434.790 MHz
RF STD：Appendix 2_Table 16@EN 300 220-2_Electromagnetic compatibility and Radio spectrum Matters (ERM); Short Range Devices (SRD); Radio equipment to be used in the 25 MHz to 1000 MHz frequency range with power levels ranging up to 500 mW@RED_Article 3(2)_Radio
Health ：Article 3(1)(a)_Health_Cenelec_EN 50566-2017_Product standard to human exposure to human exposure to electromagnetic fields in the frequency range from 30 MHz to 6 GHz: hand-held and body mounted devices in close proximity to the human body
Safety：Article 3(1)(a)_Safety_Cenelec_EN 62368-1:2014_Audio/video_ information and communication technology equipment - Part 1: Safety requirements
RF MOD：WIRELESS CONNECTIVITY_Bluetooth® <4.0_Band (in MHz)_2400 to 2483.5
Appendix 2_Table 16@EN 300 220-2_Electromagnetic compatibility and Radio spectrum Matters (ERM); Short Range Devices (SRD); Radio equipment to be used in the 25 MHz to 1000 MHz frequency range with power levels ranging up to 500 mW@RED_Article 3(2)_Radio
Article 3(1)(a)_Health_Cenelec_EN 50566-2017_Product standard to human exposure to human exposure to electromagnetic fields in the frequency range from 30 MHz to 6 GHz: hand-held and body mounted devices in close proximity to the human body
