Samsung UN55D6000SF manual Active Glasses, With the screen

	●●	The 3D Active Glasses may not work properly if there is any other 3D
		product or electronic devices turned on near the glasses or TV. If there is a
		problem, keep other electronic devices as far away as possible from the 3D
		Active Glasses.
	●●	Be sure to stay within the viewing angle and optimum TV viewing distance
		when watching 3D pictures. Otherwise, you may not be able to see 3D
		effects properly.
◀	●●	The ideal 3D viewing distance is three times or more the height of the	▶
		screen. For example, if your screen is two feet high, you should sit at least
		six feet from the screen. We recommend sitting so that your eyes are level
		with the screen.

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