Specification:
Item Type: Mini Keypad
Material: Acrylic
Connection: Wired USB/ BT
Key Type: Red Switch Mechanical Keyboard (Knob Can Be Pressed and Used As Programmable Key)
Supported Operating System: Suitable for Win, for Vista, for Linux, for OS X Laptop.
Battery Type: Inbuilt 800mAh Lithium Ion Battery
Packing list:
1 x Mini Keypad
1 x USB Cable