?compatibility?supports almost all ir controlled devices and supports 38khz frequency signal learning, including your air conditioner, tv, set-top box, dvd, fans, led lights, ir electric curtain and more. with large ir data base. ?voice control?compatible with amazon alexa/echo dot, google home to voice control your tv, stb, air conditioner and fans. the device only supports 2.4g wifi.  ?all in one?turn all ir remote controllers into one app on smartphone/tablet. support learning function(diy). you will never be bothered by a missing remote controller, say goodbye to chaos, and maintain a carefree life! ?super size & share control?super mini body, and it occupies little space. supports device sharing, and you can control your smart home together with your family. specifications: product name: wifi-ir universal remote controller power input: dc5v/1a working voltage: 3-3.6v static current: 70ma working current: 200ma ir frequency: 38khz  infrared distance: within 10m range cover: 360? induction method: infrared induction trigger led indicator: blue wireless standard: wifi 2.4g 802.11 b/g/n control mode: mobile app "tuya/smartlife" app support: android/ios(android 4.4 or newer and ios 8.0 above) material: pc/abs operating temperature: -20? - 85? operating humidity: ?85%rh item size: 70*70*18mm (l*w*h) item weight: 30g / 1.1oz package information: package size: approach. 7*7*5cm / 2.7*2.7*2in package weight: approach. 65g / 2.3oz package list: 1* wifi-ir remote 1* user manual(english) 1* usb cable