Item Type: 6 Key Mini Keypad Material: ABS Number of Keys: 6 Keys Connection Method: Bluetooth Battery Type: 300mAh Lithium Ion Battery (Ship with Inbuilt Battery) Applicable Models: Computer General Purpose 1、Programmable: All keys are programmable, you can set for Windows keyboard standard all key functions, 6 keys design, the number of keys is reasonable, suitable for various programming settings. 2、Dual Mode Connection: PC keypad supports wired USB and wireless BT dual mode connection with detachable USB cable, easy to use. 3、Customized Functions: The keyboard can be customized with a total of 6 keys and one knob in the customizable part, each knob can be customized with clockwise, counterclockwise and pressed functions. 4、ABS Material: Layered keys, a total of three layers to store different combinations of settings, compact and portable, ABS material, can be used for a long time. 5、Scope of Application: Mechanical keyboard is suitable for office, game, music, media, industrial control, laboratory, production line testing and other fields.