Specifications Display 4 digit LEDPower Supply 3V CR1220 button battery not included Working Voltage DC 5VWorking Current 40mAClock Dimensions 7 x 2 5 x 1 2 cm 2 76 x 0 98 x 0 47 inIC Board Dimensions 7 2 x 2 7 cm 2 84 x 1 06 inKit Weight 82 g 2 9 ozNote This is a DIY kit you need to assemble and solder Features 1 Pre programmed Functionality Comes pre loaded with software making it ready for immediate use after assembly 2 Light Sensitivity Feature The display adjusts brightness automatically based on ambient light enhancing visibility both day and night 3 Multi functional Allows you to set and adjust time hour minute second date weekday and hourly chime offering a comprehensive time management solution 4 Temperature Monitoring Serves as a thermometer displaying updated temperature readings every 30 seconds 5 Transparent Protective Case Includes a clear enclosure to safe the components while lending the clock a modern and sleek design Package Included 1 x DIY Electronic Clock Kit Battery Not Included