Black
To save battery power, the display can be turned off according to the time set.
Select the menu item Auto Power Off and press the Mode button to confirm.
Use the Forward/Rewind buttons to select a value from 0 to 60 seconds, where 0 means the function is disabled.
Press the Mode button to confirm. Use the Forward/Rewind buttons to select the menu item Exit.
Language
With this function you can select the font and the displayed language respectively.
Press the Mode button for more than 3 seconds to get to the main menu.
Use the Forward/Rewind button to select the menu item SYS.
Press the Mode button to confirm.
Use the Forward/Rewind button to select the menu item Language.
Press the Mode button to confirm.
Use the Forward/Rewind button to select the desired language.
Press the Mode button again to exit.