$ xinput --list --short
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ Generic USB K/B id=12 [slave pointer (2)]
⎜ ↳ Microsoft Microsoft® 2.4GHz Transceiver v9.0 id=9 [slave pointer (2)]
⎜ ↳ Microsoft Microsoft® 2.4GHz Transceiver v9.0 id=10 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Power Button id=6 [slave keyboard (3)]
↳ Power Button id=7 [slave keyboard (3)]
↳ Generic USB K/B id=11 [slave keyboard (3)]
↳ Microsoft Microsoft® 2.4GHz Transceiver v9.0 id=8 [slave keyboard (3)]