<div style="font-size:16px;">1. 4G Wireless: 19-key portable keyboard, 38 feet effective distance, using 4G wireless design, large coverage area, with display. 2. Plug and Play: The numeric keypad is driver-free and plug and play, so it only requires a USB port to provide you with the most stable USB connection. 3. U-shaped Keys: The keys have a U-shaped design with a soft touch, providing you with the most comfortable tilt angle to help reduce pressure on your wrist. 4. Low Noise: The 19-key USB numeric keypad is the least noisy, making it the best choice for working with spreadsheets, accounting documents or financial applications. 5. Applications: The USB wireless numeric keypad is suitable for windows 98/95/NT/ME/2000/XP/Vista/7.0/8.0 and above operating systems of various laptops and desktops.</div>