1-channel Smart switch for electrical devices; with two-way control, supports remote control via Wi-Fi 24GHz; for various household appliancesFeatures: Remote control with a smart device using eWeLink mobile app (Android, IOS)The relay signal is transmitted via the Wi-Fi network 24GHz 5G network is not supportedThe BasicR 4 version is equipped with an ESP32 processor with BT supportThe Magic Switch mode allows you to control the device via the app, even when the wall switch is turned offWhen combined with the Sonoff S-MATE switch, the BasicR4 can be locally controlled via the eWeLink-Remote signal up to 50m away and activate other smart devices in the smart scene Sonoff S-MATE is purchased separatelyWith this switch it is convenient to create groups to control several devices simultaneously It is applicable for the control of larger smart home systems where scenarios, schedules and timers are requiredEasy installation and managementAnother BasicR4 upgarde is the auxiliary overheating protection With product’s built-in temperature sensor the real time max temperature of the entire product can be detected and speculated, which prevents the product from deformation, melting, fire in case of over-temperature CE, FCC and ETL certifications confirm the high safety and reliability standards of this productThis switch can be combined with a variety of other products to complement smart home scenariosSpecifications: Compatible with: Sonoff S-MATE, S-MATE2, R5Voltage: AC 110-240VCurrent max: 10APower: 2400WFrequency: 50/60HzWi-Fi Frequency: 24 GHWi-Fi standard: IEEE80211b/g/nNumber of channels: 1Works with Amazon Alexa & Google AssistantApp: eWeLink (Android, iOS)Dimensions: 88x39x24mmHousing material: PC V0 (non-flammable)Operating temperature: -10°C~40°CHumidity: 5%-95%Weight: 458 gColour: whiteCertification: CE/ FCC/ SRRC/ ISED/ RoHS/ ETLWarranty: 24 months