65 
4.3  Device 
Use to check sound and display settings, storage, battery, application status. 
 
Table 4-4 
Items Description 
Brightness level 
Set screen brightness. 
Wallpaper 
Set wallpaper. 
When device is rotated
Enable / disable automatic screen rotation. 
Sleep 
Sets time to sleep (suspend). 
Display 
 
 
   
   
   
Font size 
Sets font size. 
Volume 
Set the volume such as speaker, notice, alarm and so on.
Default notification 
ringtone 
Set the default notification tone. 
Vibrate on touch 
Enable / disable vibration and ring tone. 
Touch sounds 
Enable / disable touch operation sound.   
Screen locking sounds 
Enable / disable screen lock sound. 
Sound & 
notification 
   
   
   
   
   
Touch sounds 
Enable / disable touch vibrator.   
Apps 
Confirm application installed on the terminal 
Storage & USB 
Confirm used and free storage space 
Battery 
Use to check the state of charge and time of use of the 
battery. Also, set eco charge on / off. 
Memory 
Monitors memory usage status. 
Tap & pay 
Function to settle with a smartphone. 
ScanSetting 
Ebable / disable barcode scanner.