Audio Specifications; Battery Specifications - Dell Latitude 7280 Owner's Manual

Feature Specification
External display
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support
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Audio specifications

Feature Specification
Types Four-channel high-definition audio
Controller Realtek ALC3246
Stereo conversion 24-bit—analog-to-digital and digital-to-analog
Internal interface High-definition audio
External interface Microphone-in, stereo headphones, and headset combo connector
Speakers Two
Internal speaker 2 W (RMS) per channel
amplifier
Volume controls Hot keys

Battery specifications

Feature Specification
Type
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•
42 WHr (3–cell):
Length 200.5 mm (7.89 inches)
Width 95.9 mm (3.78 inches)
Height 5.7 mm (0.22 inch)
Weight 185.0 g (0.41 lb)
Voltage 11.4 VDC
60 WHr (4–cell):
Length 238 mm (9.37 inches)
Width 95.9 mm (3.78 inch)
Height 5.7 mm (0.22 inch)
Weight 270 g (0.6 lb)
Voltage 7.6 VDC
Life span 300 discharge per charge cycles
Temperature range
44 System specifications
On system – eDP (internal display), HDMI
Optional Type-C port – VGA, DisplayPort 1.2, DVI and Thunderbolt
NOTE: Supports one VGA, DisplayPort, HDMI through the Docking station.
3-cell Lithium Prismatic battery with ExpressCharge
4-cell Lithium Prismatic battery with ExpressCharge