You can make your life more intelligent by controlling this remote control with your voice or a phone APP. With customized DIY function, this remote control requires pairing with a wired gate-way for simple control of appliances. This remote control is constructed of plastic material. The length is 6.8cm, the width is 6.8cm and the height is 2.7cm. This remote control is suitable for home use. Item Name: Remote Control Material: Plastic Features: Voice Command, Timing-Function, APP Control Power Input: 2 x AAA Battery(Included) Stand-by Power: Less Than Or Equal to 0.5W Controlling Distance: Less Than Or Equal to 8m(Finally Effect by Environment) IR Frequency: 38KHZ Operating Temperature: 0 Degrees Celsius~50 Degrees Celsius Operating Humidity: Less Than Or Equal to 85 Percent RH(No Condensation) Wireless Protocol: Works with ZigBee Execution Standard: GB/T9254-2008 Size Details: L: 6.8cm/2.68", W: 6.8cm/2.68", H: 2.7cm/1.06" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Note: The smart IR remote only works with Tu-ya wired, works with Zigbee hub, no wireless hub functional. Package Includes: 1 x Remote Control 1 x User Manual