Sonoff SNZB-03 Mode D'emploi page 43

Hereby, Shenzhen Sonoff Technologies Co., Ltd. declares that the
radio equipment type SNZB-03 is in compliance with Directive
2014/53/EU.The full text of the EU declaration of conformity is
available at the following internet address:
https://www.sonoff.tech/usermanuals
TX Frequency:
ZigBee：2405-2480MHz
MAX PER：
2.24（2405MHz），2.23（2480MHz）
Shenzhen Sonoff Technologies Co., Ltd.
1001, BLDG8, Lianhua Industrial Park, shenzhen,
GD, China
ZIP code: 518000
MADE IN CHINA
Website: sonoff.tech