Amazon Japan has slashed the prices down for the Nintendo Switch Privacy Filter, an official accessory manufactured by Nintendo.
The Privacy Filter is supposed to be attached over your Nintendo Switch Console. It prevents other people from seeing what you’re playing, which is essentially useful while playing naughty games or during competitive Pokemon battles after the Pokemon Switch game releases. The Privacy Filter doesn’t affect what you see and the touch screen still works even when attached.
Grab the Privacy Filter from Amazon Japan here (eligible for international shipping).