Asus T100 Series E-Manual page 16

Micro USB 2.0 port
Use the micro USB (Universal Serial Bus) port .0 to charge or
supply power to your Notebook PC.
Micro HDMI port
This port is for a micro HDMI (High-Definition Multimedia
Interface) connector and is HDCP compliant for HD DVD, Blu-ray,
and other protected content playback.
Headphone output/Microphone input combo jack port
This port allows you to connect your Notebook PC to amplified
speakers or headphones. You can also use this port to connect
your Notebook PC to an external microphone.
Microphone
The built-in microphone can be used for video conferencing,
voice narrations, or simple audio recording.
Battery charge indicator
This two-color LED provides a visual indication of the battery's
charge status.
Refer to the table below for details:
Color
White
Orange
OFF
1
Fully charged.
Charging mode.
The Notebook PC is not plugged to a power source.
Notebook PC E-Manual