Supports additional RF remote controls for daily use APP remote control,Download the smart life /Tuya smart APP on your mobile phone and tablet to control the curtain switch anytime and anywhere. Timing/countdown/schedule,Maximize smart and DIY Curtain opening percentage control Precise calibration function,Precisely control the curtain opening percentage through APP and voice control Product type:1/2 gang WIFI curtain module Voltage:AC100-240V 50/60Hz Working temperature:-10 + 40 Protocol WIFI IEEE 802.11b/g Working range Less than 100m Dimensions: (width x depth x height) 39x39x19.4 mm Maximum load:3A Working frequency: 2.412GHz-2.484GHz Radio frequency: 433Mhz IP rating: IP20 The product appearance and printed words depending on the batch, but this does not affect use. Colour: Material:plastic Package Contents: 2 * Switch Module 2 * remote controls 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.