Welcome to our store! 1. Soft Typing Feel: The numeric keypad provides you with the most comfortable tilt angle to reduce wrist pressure. 2. 18 Keys: 18-key USB numeric keypad with low noise for working on spreadsheets, accounting documents, or financial applications. 3. Plug and Play: The numeric keypad only requires one battery and one USB port, providing you with the most stable USB connection. 4. Scope of Application: The USB wireless numeric keypad is suitable for various laptops and desktops with for Win 2000, for OS X, for XP, for Vista, or for Win 7 and later operating systems. 5. Small and Compact: The small and compact body does not take up too much space, which is convenient for storage and use. Item Type: Numeric Keypad Material: ABS Model: SK 51AG Interface: USB Connection: 2.4G Wireless Effective Distance: 10 meters Number of Keys: 18 keys Battery Type: 1 x AAA Alkaline battery (not included) 1 x Numeric Keypad 1 x Receiver 1 x User Manual If you receive your item and find any product issues, such as damage or incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory customer service.