1, working voltage: AC85-240V 60HZ/50HZ 2, working frequency: 433.92MHZ 3, the total load power: Less than 1000W 4, receiving sensitivity: -108dBM 5, working method: wireless remote control 6, coding method: learning code 7, modulation method: ASK 8, working temperature: -10 ℃ - +70 ℃ 9, size: 72 x 38 x 26 (mm) 10.The controller has a memory function, remembers the state before the power was turned off Colour:White Material:plastic style:3 Gang / 1 Gang / 2 Gang Package Contents: 1 * Switch style:Controller Package Contents: 1 * Controller (with CR2032 battery) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.