•4 kinds of control mode, especially suitable for the elderly, nursing mothers, Pregnant women. disabled people, children, etc. •433MHZ RF frequency function + WIFI function 2 in 1, smarter and more user-friendly •Pass certification: CE, FCC, ROHS, 100% inspection before transportation to ensure product safety •Work perfectly with Amazon Alexa, Google Home •Countdown Function: You can have more time to do other things •Timing Function: Set the time to turn on the light. Set time to cook rice •Note: This link only sells WIFI + 433MHZ RF controller, does not include wireless switch. Wireless switch requires additional purchase Parameters: •Working voltage: AC90-250V 60HZ / 50HZ •WIFI: IEEE 802.11 b/g/n •RF working frequency: 433.92MHZ •Maximum current: