[Tri-Mode Connection] - Powerful 3-mode connection supports Wireless 2.4GHz/Bluetooth 5.0/USB-C Wired. You can connect up to 3 bluetooth devices, 1 wireless 2.4GHz device and 1 wired device. Connect and switch devices easily. Press FN+1/2/3/4/5 switch to BT1/BT2/BT3/2.4G/Wired mode. Compatible with Windows, MacOS, IOS and Android systems. Support PC, laptop, Mac, smartphone, iPad and tablet.

[Gasket-Mount & Hot Swap] - With gasket materials such as EVA foam and IXPE switch pads between the plate and housing on both top and bottom sides, the mechanical numpad provides a consistent, softer typing feel and pleasing acoustic feedback. The hotswap keypad supports both 3 pin and 5 pin switches. Comes with creamy sounding linear Phantom Lattice switches, brings you a comfortable and pleasant typing experience.

[20 Keys Programmable] - Program all 20 keys except the FN key using the keypad driver. Customize each key with different functions such as system shortcuts, multimedia shortcuts, text input, one-click open for files/folders/web pages, macros, and more. This numpad features memory capability, ensuring settings are retained even after power loss. (Keypad Driver: bit.ly/K19-Driver)

[True RGB Backlit & PBT Keycaps] - This RGB illuminated numeric keypad has up to 18 backlight modes. Supports RGB colors and single color. You can also customize the backlight and turn on the music rhythm mode in the driver. Comes with ultra-durable PBT keycaps that legends will never wear away. PBT keycaps are dry and not easy to get oily.

[21-Key NKRO] - All 21 keys are anti-ghosting and non-conflict. Every keystroke is registered during intense gameplay and fast typing, no matter how many other keys are pressed at the same time.

[Rechargeable & Energy-Saving] - The number keypad has a 1500mAh lithium battery, with low-power chip and energy-saving technology, it can last between 30-60 days, depending on usage. Turn off the backlight automatically after 2 minutes of inaction. The keyboard goes to Hibernation Mode in 30 minutes of sitting idle to save battery, any key to wake up. Press FN+. to check the battery level.