Sonoff RFR2 Smart switch

Wi-Fi standards: 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Operating relative humidity (H-H): 5 - 95
Wireless technology: Wi-Fi
Supported protocols: WEP/WPA/WPA2/TKIP/AES
Operating temperature (T-T): -10 - 40
Power source: AC
Height: 24 mm
Width: 88 mm
Depth: 39 mm
Connectivity technology: Wired & Wireless
Product colour: White
Networking standards: IEEE 802.11b, IEEE 802.11g, IEEE 802.11n
Operating frequency: 433 MHz
Channels quantity: 1 channel
Input current: 10 A
Placement supported: Indoor
Easy to install: Yes
Package type: Box
Housing material: Polycarbonate (PC)
Remotely operated: Yes
Transmission distance: 2000 m
AC input frequency: 50 - 60 Hz
AC input voltage: 100 - 240 V
Quantity per pack: 1 pc(s)
Maximum power per channel: 2200 W
Android, iOS, tablet compatibility: Yes
Works with Amazon Alexa: Yes
Sustainability certificates: CE, RoHS