![]() ![]() If the headphone-looking jack says " IR Blaster," it's intended to be used with an infrared "blaster" cable that allows your TV to send an infrared remote signal to adjacent devices like a cable box. ![]() If you see what looks like a headphone jack on the back of your TV, but instead of a headphone icon or a label like "audio," it says "Service," "RS-232C," or something similar, it is a service port intended for use by the manufacturer or a technician. Larger televisions rarely have headphone jacks. But if you're sitting across the room from the TV, that's not exactly an idea solution as you'll end up with a lengthy 3.5mm extension cord draped across your living space-let's look at the audio ports on larger televisions and then talk about a wireless solution that works for TVs big and small. The simplest way to take advantage of the headphone jack is to just plug a pair of headphones into it. If you're using a computer monitor with a Chromecast or such as a makeshift TV, by the way, there's an even higher chance there is a headphone jack because many monitors come with them.
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