Dell M110 User Manual page 60

Wireless Dongle (Optional) Wireless Standard: IEEE802.11b/g/n
Light Source
NOTE:
The LED life rating for any projector is a measure of brightness
degradation only, and is not a specification for the time it takes a LED to fail
and cease light output. LED life is defined as the time it takes for more than 50
percent of a LED sample population to have brightness decrease by
approximately 50 percent of the rated lumens for the specified LED. The LED
life rating is not guaranteed in any way. The actual operating life span of a
projector LED will vary according to operating conditions and usage patterns.
Usage of a projector in stressful conditions which may include dusty
environments, under high temperatures, many hours per day, and abrupt
powering-off will most likely result in a LED's shortened operating life span or
possible LED failure.
60 Specifications
MicroSD card slot: One microSD connector for
supporting multimedia playback
(Video/Audio/Photo) and supporting media and
image processor firmware upgrade.
The micro SD-HC card can support up to 32 GB.
Wireless: One USB (type A) connector for
supporting wireless dongle (USB interface, optional)
and mobishow.
OS environment: Windows 7/Vista/XP/2000, MAC
OS X
Mercury-free LED (up to 20000 hours in Normal
mode)