https://www.kensington.com/p/products/control/trackballs/expert-mouse-wireless-trackball/
これ,2.4GHz専用ドングルと,Bluetooth4.0の両対応なんだな.すごい.
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ふぉの :inkan: :sabakan: (fono@ma.fono.jp)'s status on Sunday, 17-Feb-2019 14:24:15 JST ふぉの :inkan: :sabakan: