Bluetooth Numeric Keypad Portable Wireless 22 Keys Keyboard External Numeric Keypad for Laptop Tablet Notebook PC Desktop Accounting|Keyboards Product Information Product Dimensions : 12.5 x 8.2 x 1.8 cm; 120 grams Connection Method: Bluetooth Features: Upgraded Version Wireless Numeric Keypad: Compared to our regular version wireless numeric keypad, this multifunctional number keypad supports NumLock, Backspace, ESC, Delete etc. With a shortcut key that can open your computer's calculator directly, it can assist with accounting tasks, excel spreadsheets, and more to expand your existing keyboard. Bluetooth 3.0 Connection: Bluetooth 3.0 technology provides a cable-free and clutter-free connection, it is very stable, reliable fast data transmission, no delays and interruptions, no drivers needed, working distance 10m. Solid and Portable Design: This sturdy bluetooth number pad is easy to carry with you, allowing you to work safely and quickly, anywhere and anytime. User-Friendly: 22 full-size keys, comfortable to type precise control, good resilience fast response and reduce pressure sound, providing quiet office operation and long lifespan. Wide Compatibility: Compatible with Windows 98/SE/ME/2000/XP/Vista/7/10, Mac OS X 10.6 and above, Linux 2.4 or higher operating systems. Bluetooth external numeric keypad is not fully compatible with Mac system (function keys do not work, while number keys work fine).