Macally BTNUMKEY22The Macally BTNUMKEY22, 22 key numeric keypad, allows professionals to efficiently enter long sequence of numbers in spreadsheets, accounting programs, calculators and increase their productivity. The Macally BTNUMKEY is very easy to use. Simply pair it with your computer (no software required! ) and you are ready to go. ADDITIONAL KEYS for ENHANCED PRODUCTIVITY: * (4) Arrow Keys: (up, down, left and right)* (5) Function Keys: (Add, Subtract, Add, Multiply, Equals)* (13) Standard Keys: (Numbers 0-9, Decimal, Clear & Enter) LONG BATTERY LIFE: Lasts 400 hours of non-stop usage and no sleep mode activation. SYSTEM REQUIREMENTS: * Mac OS X v10. 6 or later. * Any Bluetooth enabled Apple Device: * Apple iMac, Mac Pro, Mac Mini & MacBook Laptops: MacBook / MacBook Pro Retina (w/ touch bar), MacBook Air, 11" 12" 13. 3" 15"17" 21. 5" 27" 2009 to 2018 * 2018 iPad Pro / 9. 7" iPad, iPad Pro 10. 5 / 9. 7, iPad Air 2 / 1, iPad Mini 4 / 3 / 2 / 1, * iPhone X / XS Max / XR / 8 / 8 Plus / 7 / 7 Plus / 6s / 6 / 6 Plus / 5 / 5s / SE SPECIFICATIONS: Color: Space Grey with Black KeysIncluded Battery: (1) AAA Alkaline Battery Total Keys: 22 Keys (Clear, Equals, Divide, Multiply, Subtract, Add, Enter, Decimal, Arrows, & numbers 0-9 etc)Dimensions (inches): 132 (H) x 90 (W) x 17 (D)Weight: 104 grams (0. 2 pounds)Bluetooth Reach: up to 30'Design: Slightly tilted and sloped for relaxing hand placement. Power LED Indicator: The Power LED Indicator is located on the top left corner of the keypad, which ? green signifies that the keypad is on and connected to your device WORRY-FREE : At Macally, we believe in our products. That's why we back them all with a one-year and provide friendly, easy-to-reach support for any of your questions.