10
Power Button
11
Scan Button
12
Camera
13
LOCK
14
FUNC Key
15
Scan Button
16
Barcode Scanner
17
Headset port
18
DC port
19
USB port
Power-on/power-off/suspend/wake-up
Press to Scan
Take a picture or video
Lock or unlock the battery cover
Self-define side key
Activate Barcode Scanner
To aim the Barcode Scanner
Plug in a 3.5mm headphone
DC charging
Data communication or charging