PLUG & PLAY: Simply connect the receiver to a USB port and start crunching numbers immediately. Our 2.4 GHz signal is highly stable and reliable, requiring no drivers, offering no delays or interruptions, and ensuring fast data transfer. PERFECT DESIGN: The round keypad design is distinctive, providing a comfortable click. It's silent, and the keys bounce back quickly. The stylish numeric keypad boasts an ergonomic design for fatigue-free long-term use, making it especially suitable for professionals working with spreadsheets, accounting documents, or financial applications. AUTOMATIC SLEEP FUNCTION: It automatically enters sleep mode after 5 minutes of inactivity, so you don't have to worry about wasting power. Press any key to wake up the keypad. When the power is low, the indicator light will illuminate to remind you, preventing it from being unusable when you need it most. PORTABLE AND MINI: The portable design makes it easy to store in your bag for business trips. Featuring four anti-slip pads on the back to prevent movement on your desk and ensure uninterrupted work. For businesses handling high-volume numerical tasks, this 18-key USB keypad enables a more streamlined and efficient workflow. Great Compatibility: The wireless numeric keypad works with PCs, laptops, and desktops running Windows 2000 / XP / Vista / 7 / 8 / 10 systems.