Quick Reference Guide 3
Introduction
The ET51 is a wireless LAN (WLAN) tablet and the ET56 is a wireless WAN (WWAN)
tablet.
Features
Item Description
1 Ambient Light Sensor - Recognizes the ambient light and adjusts the
display brightness (if enabled).
2 Front Microphones - Use for voice communications or audio recordings.
3 Front Facing Camera - Use for video conferencing or capturing images and
video.
4 Camera Indicator LED - Lights red when the camera is activate.
Momentarily lights red when the device boots and shuts down.
5 Charging Indicator LED - Indicates charging status.
OFF - device is not connected to charger.
ORANGE - device is charging.
GREEN - device is connected and fully charged.
RED - charge error.
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