![background image](http://html.mh-extra.com/html/bluebird/ef500/ef500_user-manual_2777300017.webp)
3 Overview
8
3.2.3 Bottom and Top
EF500
1
2
3
4
5
EF500R
1
2
3
4
5
No. Name
Description
1
Barcode scanner
Scans barcodes by emitting a red laser when you press the related button.
2
Headset jack
Connects to the headset.
3
Secondary
microphone
Acts as sub microphone, removing noise and echoes.
4
Primary microphone Captures sound for calling, video recording, and speech recognition.
5
Charging contacts
Allows the device to be charged.