Features: 1.PROGRAMMABLE: All keys of the Mechanical keyboard are programmable. It is possible to set all the functions of a standard for Windows keyboard and realize complex combinations of shortcuts with a single click. 2.DUAL MODE CONNECTION: Mini 15 key keypad supports both wired USB and wireless Bluetooth dual mode connection, free choice, detachable USB cable, free from the constraints of the cable. 3.SPACE SAVING: Mini macro mechanical gaming keyboard effectively saves desktop space, you can connect the keypad (plug and play) and another keyboard at the same time on the same computer, they will not interfere with each other. 4.KNOB FUNCTION: Not only can you rotate it to adjust but also can be used as a key, the knob can be set to zoom in and out, up song cut song, following volume up, volume down, pause, play and other functions, one handed macro mechanical keyboard is easy to operate. 5.WIDE APPLICATION: The mini keyboard is suitable for office, game, music, media, industrial control, laboratory, production line testing, etc. It is a good helper for designers and video editors and many other types of users. specification:Item Type: 15 Keys 3 Knobs Programmable Wired Keypad Material: Acrylic Key Type: 15 Keys Mechanical Keyboard, 3 Knobs (Knobs Can Be Pressed as Keys) Key Switch: Blue Switch Applicable Devices: Computer, Cell Phone, Tablet Universal Battery Type: Built In 500mAh Lithium Ion Battery PackageList: 1 x Keyboard (Ship with Inbuilt Battery) 1 x Data Cable 1 x User Manual 6 x Footpad