Description: 18 keys: Notebook keypad layout with backspace key, input and correction, more convenient and effective to improve work efficiency. Wireless: The numeric keypad adopts stable 24G wireless technology, covering a transmission range of 10 meters, with strong anti-interference ability, no delay. Quiet keys: The wireless keyboard can be operated at will, without worrying about too much noise, giving you a comfortable and quiet input experience. Intimate design: The keyboard uses a round chocolate keycap, which accurately calculates the size of the contact area between the fingertip and the keycap and usage habits. Portable: Number mini wireless keyboard is small and lightweight, which is very convenient to carry, which will not take any space whenever it is in bag or desktop. Specification: Keys: 18 keys. Connection: 2. 4GHZ. Working distance: 10m. Power: 1x AAA (Included). Size: Approx. 3.5 x1.08 inch. Color: Colorful black, colorful blue, colorful green, colorful pink. Compatible system: Replacement for Window XP7/8/10, replacement for IOS. Note: There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Press the Nunlock key to turn on the digital input function, press it again to turn off the digital key input function 2468 and convert it to the direction key function. Package Includes: 1 Piece Mini Wireless Keyboard(with 1 Piece Receiver).