Different kinds of wireless earphone Inspection:
Bluetooth wireless earphone
Infrared wireless earphone
Sport wireless earphone
Car wireless earphone
Some common factors for wireless earphone quality control:
Appearance
Quantity check
Measurement
Call test
Function test
Aging test
Bluetooth function connection effective distance
Audio left and right channel check
Charge and discharge performance
3M tape test for Logo
Barcode scanning
Internal check
Working current check
Carton dropping test
