The YourType Bluetooth Wireless Keypad from Belkin is a convenient solution for data entry, accounting functions, and other numbers-based operations. It adds 28 keys to your compatible Apple device, including number keys, function keys, and document navigation controls. It's designed to work with the MacBook Pro, MacBook Air, iMac, and Apple Wireless Keyboard. The YourType Keypad connects to your compatible device via Bluetooth, enabling you to position it however you like without the hassle of additional wires or cables. The keypad's aluminum enclosure and low-profile keys are designed to mirror the look of your Apple device, so your workstation remains aesthetically congruent. Two AA batteries are included.