The following steps outline how you can change the language of the viewneo 4K SignageBox:
Open Player Settings by clicking on the "Menu" button on the remote control. Alternatively, the mouse pointer on the remote control can be activated, directed to the upper right corner and then used to click on the lock icon which appears. 
Select the menu tab *SYSTEM
Choose SETTINGS
Scroll down until you reach the entry for language and inputs
Select "Language" (note: the default language is German)
Select the desired language Once you have selected your desired language, you can navigate back to the playlist by using the back button on the remote control or you can clicking on the mouse pointer until you have arrived back at the player.