Features: 1.Fast Customization: Multifunctional 12 keys, 3 knob keyboard, supports quick customization, convenient for setting various key combinations. 2.Connection Modes: Programming keyboard supports 3 connection modes of Bluetooth, USB, 2.4G USB reception, free switching and simple operation. 3.System Supported: Keyboard with storage function, which can be set up on for Windows and used on systems that support the USB protocol, such as for VISTA, for Linux, for OS X, etc. 4.Features: Support up to 18 bit character shortcut key overlay, one key output, simple and fast. The knob has a click function, and can be used as the left and right keys of the mouse, 5.Application: Keyboard with RGB design, suitable for office, game, music, media, industrial control, laboratory, production line testing and other fields. Specification: Item Type: Programmable Keyboard_x000D_ Material: Acrylic, PCB_x000D_ Application: Suitable for office, game, music, media, industrial control, laboratory, production line testing and other fields_x000D_ Connection Mode: Bluetooth /USB/2.4G USB reception_x000D_ System Support: for Windows, for VISTA, for Linux, for OS X _x000D_ Keystroke Life: up to 50 million times_x000D_ Light: RGB_x000D_ _x000D_ Type: Dustproof green shaft_x000D_ Key Number: 12 keys_x000D_ Product Size: L120xW115xH38mm/4.72x4.52x1.49in_x000D_ Current Voltage: DC 5V/1A_x000D_ Operating Temperature: -10-50_x000D_ _x000D_ Battery Type: 1000mAh lithium battery x1 (built in) PackageList: 1 x_x000D_ _x000D_ ProgrammableKeyboard 1 xUSB Receiver 1 x USB Cable 4 x Rubber Pad Note: 1. Bluetooth wireless 15 minutes no operation will automatically enter the hibernation mode. In the hibernation time, click the keyboard "button 1" to wake up. Wake up time about 2 seconds to complete, and automatically connected. _x000D_ 2. Battery life, fully charged, normal use of about 1 month, charging time, the indicator light is "red" light, full indicator light is "green" light. _x000D_ 3. Layer function switch, press a layer button, switch a layer, after the power failure will automatically remember the current layer. Warm tip: This software can only run on Windows system for the time being, try to download on the computer PC 4, the output of a single letter is the normal factory settings, open the custom software to redefine the function of the keys. _x000D_ 5. Set the software does not need to install, open can run directly, set up will be automatically stored on the chain disk, and then inserted to support usb protocols such as for Linux, for OS X and other systems to use (the first run note that antivirus software to release, set to trust files)! _x000D_ 6. Software download problems, please consult customer service, customer service will help you solve!