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Note: The 3DS right stick is used, 3DSLL, 3DSXL use substandard,

Note that this requires the use of an expansion rocker AAA batteries provide power. Expansion rocker size 9.32 × 17.32 × 4.23 (length × width × thickness) and weighs about 132g. Also this rocker in addition to carrying the right stick, but also increase the R, ZL, ZR key. Note that the slot after the equipment 3DS stylus slot, wireless communication will become unable to direct contact, so the equipment after the replacement of the rocker game must first remove the expansion rocker then replace the game, this is more complicated. Honestly I hope manufacturers can improve on this next point.