Number of keys: 2 keys+buttons
Wired/Wireless: Support all keys without punching.
Lithium battery capacity: lithium battery capacity 90 mah 0.33 wh
USB wired mode:
Working voltage: dc5v 5%
Working current: 100MA max.
Bluetooth /2.4G mode
Working voltage: DC 3.7 V 5%
Operating current: 10MA
system support
Wired and 2.4G modes: win XP/win 7/win 8/win 10/win 11/MAC OS.
Bluetooth mode: Win8/Win10/Win11/Macos
2.4G pairing
Wheel button+right button
Long press: right click the green light to flash the code, then insert the receiver. After successful pairing, it indicates that the green light will go out and return to the current light.
Bluetooth pairing
Wheel key+left key
Long press: press the blue light with the left key to flash the code, then turn on the device to be connected, search for Bluetooth devices (K2PRO 3.0/5.0), and indicate that the blue light will go out after successful pairing, and return to the current light effect; If the keyboard doesn’t match the code successfully in 2 minutes, it will automatically turn off the lights and sleep, and it needs any key to wake up and re-pair.
Note: When the keyboard blinks slowly for a long time, you need to press the “wheel key+left key” for code alignment. If the device shows that Bluetooth pairing is successful, but it can’t be used, please delete the (K2PRO 3.0/5.0) Bluetooth device name in the Bluetooth list of the device and pair again.
Wireless dormancy
After Bluetooth /2.4G is connected to the device, it will not operate for 2 minutes, automatically turn off the backlight to go to sleep, and click any key to wake up the current state.