Wired/Bluetooth mode switching (updated version) Wired mode: the switch on the back of the keyboard should be turned off with the cable connected; Bluetooth mode: turn on with cable unplugged (old version) Click FN+Tab to change to wired or Bluetooth mode; Bluetooth matching mode (updated version) Long press FN + Q/W/E to activate Bluetooth pairing mode, Q/W/E will flash when the keyboard is capable on pairing, and Backlight stops flashing when pairing is completed (old version) Long press FN + P to activate Bluetooth pairing mode... arrow key function FN + Enter (updated version) FN + right shift (old version) Secondary key 6 function keys FN + Left Ctrl (Updated/Old Version) Type "?" FN + Right Shift + /(?) Or press Left SHIFT + /(?) Arrow keys function is disabled directly Specification: dimensions: about 292*102*39mm Net weight: about 0.5kg Switch: brown switch Operating force: 50g - 60g Key numbers: 64 keys Key life: >50 million times Operating current: 150mA Operating voltage: 3.3V Keycaps type: double ABS keycaps Operating system: Windows XP/Windows Windows XP/Windows 2000/WIN7/WIN8/WIN10/MAC/IOS/ANDROID Built-in 1450mAh lithium battery Package Includes:1 x LIGHTS MINI Mechanical Keyboard 1 x Removable Type-C Cable(Old Micro USB Version)1 x User Manual Note:Spacebar will turn on red LED light while charging, red light goes off when fully charged. (Old version) Spacebar backlight will flash 3 times while charging, 5 times shows it is fully charged. (Updated Version)