Acer TravelMate 4400 manual Closed front view, See Launch keys on page 10 for more details

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#	Item	Description
6	Click buttons	The left and right buttons function like the left
	(left, center and right)	and right mouse buttons; the center button
		serves as a 4-way scroll button.
7	Launch keys	Buttons for launching frequently used programs.
		See "Launch keys" on page 10 for more details.
8	Status indicators	Light-Emitting Diodes (LEDs) that turn on and off
		to show the status of the computer's functions
		and components.
9	Palmrest	Comfortable support area for your hands when
		you use the computer.

Closed front view

#	Icon	Item	Description
1		Speakers	Left and right speakers deliver stereo
			audio output.
2		Bluetooth	Press to enable/disable Bluetooth
		communication	function. Lights to indicate the status of
		button/indicator	Bluetooth communications
			(manufacturing option).
3		Wireless	Press to enable/disable Wireless function.
		communication	Lights to indicate the status of wireless
		button/indicator	LAN communications
			(manufacturing option).

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Line-in/mic-in jack	Accepts input from external microphones.
Speaker-out/line-out/	Connects to audio line-out devices
headphone jack	(e.g., speakers, headphones).
Battery indicator	Lights when the battery is being charged.