Sonoff RFR2

Smart 1-channel switch for electrical devices; with two-way control, supports remote control via Wi-Fi 2.4GHz and RF 433MHz; for various household appliances.  Features:  Remote control with a smart device using eWeLink mobile app (Android, IOS). The relay signal is transmitted via the Wi-Fi network 2.4GHz. 5G network is not supported. Device allows LAN mode. Remote control via RF 433MHz is supported (e.g. to open/close the garage door). Supports a variety of scenarios: devices or groups of devices can be controlled with one touch or voice command. You can turn electrical devices on/off from anywhere using your smartphone or tablet (eg. going out scene: switch off the light, water heater, TV, air conditioner, coffee machine, etc.). Time schedules, countdown are also supported. App support: eWeLink app (IFTTT) or Google Home. Voice Control is compatible with Amazon Alexa and Google Assistant. Resistant to extreme temperatures, non-combustible housing material LexanTM PC940. This switch can be combined with a variety of other products to complement smart home scenarios.  Specifications:  Voltage: AC 100~240V. Current max.: 10A. Power: 2200W. Frequency: 50-60Hz. Wi-Fi Frequency: 2.4 GH. Wi-Fi standard: IEEE802.11b/g/n. Number of channels: 1. Works with Amazon Alexa & Google Assistant. App: eWeLink (Android, iOS). Dimensions: 90x41x27mm. Housing material: PC940 V0 (non-flammable). Operating temperature: -10°C~60°C. Humidity: 5%-95%. Weight: 59 g. Colour: white. Certification: CE/ FCC/ RoHS.  Warranty: 24 months.