Screen : 1.54 inch TFT IPS screen with 240x240pxInterfaceType-C USB (no cable include!)Power: 5V/1ASize: 35mmx 37mmx 45mmLauguage: English only.Function: show weather, pressure, min/max temperature, wind speed, city, country/region, week day, outdoor temperature and humidity, and 3 gif animations inside (you can choose or upload by yourself according to the instructions).NO button No alarm clock.Plastic material, NO BATTERY INSIDE, about 20g weight.ALL MAIN CITY SUPPORTED OVER THE WORLD.Here is the User Manualhttps://drive.google.com/file/d/1Zxrbon4l7i6k5vQLniN-HJpAi_qltxIu/view usp=share_linkFirmware updated 2020/08/24:1) Support temperature display in Fahrenheit or Celsius. (Suggested by US friend)2Support different Date format YYYY/MM/DD, MM/DD/YYYY, DD/MM/YYYY. (Suggested by JP friend)3Add Night mode support. (Suggested By BR friend)4) Other fixes. Note: 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. Sold by-Minnanxin