Welcome to the store! Programmable Function: This mini keyboard is programmable and designed with a knob. Allows you to freely configure keys and functions, improving work efficiency and comfort. Dual Mode: This programmable keypad can be easily connected via USB cable or wireless BT, widely compatible with a variety of devices. Red Switch: This gaming keypad features a mechanical structure and red switch, ensuring faster response and longer lifespan. Ergonomic Design: This mini mechanical keypad also features an ergonomic design for easier and more comfortable typing. Durable Acrylic: This one-handed keypad with knob is made of premium acrylic material, which is strong, durable and resistant to wear. Item Type: Mini Keypad Material: Acrylic Connection: Wired USB/ Wireless BT Key Type: Red switch, mechanical keyboard (the knob can be pressed and used as a programmable key) Supported Operating Systems: Suitable for Win, for Vista, for Linux, for OS X Laptop. Battery Type: Built-in 800mAh lithium-ion battery 1 x Mini Keypad 1 x USB Cable Your 100% satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will give you the best solution!