Sonoff 4CH Serie Instructions D'opération page 53

Hereby, Shenzhen Sonoff Technologies Co., Ltd. declares that the radio equipment
type 4CHR3/4CHPROR3 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://sonoff.tech/usermanuals
TX Frequency:
WiFi: 2412-2472MHz
RX Frequency:
WiFi: 2412-2472MHz
Output Power:
15.55dBm
16.3dBm(802.11b), 17.16dBm(802.11g), 17.38dBm(802.11n20)
Shenzhen Sonoff Technologies Co., Ltd.
1001, BLDG8, Lianhua Industrial Park, shenzhen, GD, China
ZIP code: 518000
MADE IN CHINA
SRD: 433.92MHz
Website: sonoff.tech