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Hearing Without the Wires

DigiFi_Opera If having to fight the tangle of headphone cords happens every time you want to incorporate audio into a lesson plan, DigiFi’sOpera S1 Plus wireless headphones can let the audio come through. At less than an ounce, it’s hard to believe that the Opera S1 Plus can reproduce CD-quality sound and has an individual volume control. The Opera headphones come with a 2.4-GHz transmitter that has a standard 3.5mm plug to use with the headphone jack of any digital music player.

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