Features:1.The product suitable for cars,bedroom,and outdoor sport.A.For cars:It has luminous light, which is good for night driving.B.For bedroom:When you get up in the middle of the night,turn on the backlight on the bato chethe time and temperature.There is no need to wait for a time,the luminosity is moderate,the luminosity that the eyes can easily adapt to,does not affect sleep.C.For outdoor sport:When camping,it is light and small,and it is portable.If the network is not good,it can be used as a tool.2.Compact, stylish,and novel car clo.Clock, temperature display function Blue backlight,equipped with clips and double-sided stickers, air outlet, center console, etc.,easy to install.Steps for setting time:1. Clofunction: There is 12/24 hour switching function (default is 12-hour system).2. Closetting: Pre A key for 3 seconds to set the hour, pre B to set the value, then pre A to set the minute, pre B to adjust the minute (adjust the minute to zero), then pre A to confirm and exit the setting. (Pre and hold the B on while adjusting the value, it can be speeded up. When setting, if there is no key preed for more than 60 seconds, it will automatically confirm and exit the setting).3. There is a rectangular on above the electronic clothat prees to illuminate the blue light (the brightne is maintained for 3 seconds).4. Temperature function: The automatic temperature measurement range is 0℃ - 70℃.5. There is a battery compartment on the right and 2pcs on batteries. (You can buy it at a stationery store).Details:* Normal time LCD dial display.* Blue balight maintaining 5 seconds* Dial temperature display* Please take out batteries and reload it again* if display is abnormal, and time need to be reset* Color: Black.* Size: 86*2mm(Please note that this may have a gap of 1-3cm.)