Unifying Receiver Device path : /dev/hidraw2 USB id : 046d:c52b Serial : C03E9E2E Firmware : 12.01.B0019 Bootloader : 02.14 Has 2 paired device(s) out of a maximum of 6. Notifications: wireless, software present (0x000900) Device activity counters: 2=118 2: Wireless Keyboard K270(unifying) Codename : K270(unifying) Kind : keyboard Wireless PID : 4003 Protocol : HID++ 2.0 Polling rate : 20 ms (50Hz) Serial number: FE8C8542 Firmware: RQK 35.00.B0017 The power switch is located on the top case. Supports 12 HID++ 2.0 features: 0: ROOT {0000} 1: FEATURE SET {0001} 2: DEVICE FW VERSION {0003} 3: DEVICE NAME {0005} 4: BATTERY STATUS {1000} 5: unknown:1820 {1820} hidden 6: REPROG CONTROLS {1B00} 7: WIRELESS DEVICE STATUS {1D4B} 8: unknown:1DF0 {1DF0} hidden 9: unknown:1DF3 {1DF3} hidden 10: ENCRYPTION {4100} 11: KEYBOARD LAYOUT {4520} Has 8 reprogrammable keys: 0: Play/Pause => Play/Pause nonstandard 1: Mute => Mute nonstandard 2: Volume Down => Volume Down nonstandard 3: Volume Up => Volume Up nonstandard 4: MY HOME => HomePage nonstandard, reprogrammable 5: Mail => Email nonstandard, reprogrammable 6: SLEEP => Sleep nonstandard, reprogrammable 7: Calculator => Calculator nonstandard, reprogrammable Battery: 90%, discharging.