A:AnswerHello S61N, this device is designed to take the sound of one source to two receivers (speakers, headphones), if the device is used the other way around the receiver in this case the TV will try to work with the two devices at the same time and that's why the interfere between each other. Omar S. - Insignia Support.
A:AnswerRob yes you can, just as long as the 2prongs are 3.5mm and not RCA. Otherwise purchase adapter for RCA to 3.5mm then you will be fine for connecting to (computers,headphone,smartphone,etc). I own both, stating a fact. This should be helpful.
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