Have a PlayStation 4 and a USB microphone? You can turn it into a karaoke machine. A Joysound.TV app is available for free on Japan's PlayStation Store and a disc version with 51 songs including music from Hatsune Miku is also out for PS4.
JOYSOUND.TV Plus - PS4
Cable Guy Controller Holder - Hatsune Miku
JOYSOUND.TV Plus - PS4
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JOYSOUND is Japan's first broadcast karaoke brand
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JOYSOUND is Japan's first broadcast karaoke brand
JOYSOUND.TV Plus - PS4
We Sing