Features: 1.NUMERIC KEYPAD: Office keyboard has a separate numeric keypad, which is convenient for various numeric calculations and financial management. 2.IMPROVED STABILITY: The internal design structure of the scissor keys greatly improves the stability of the keys, optimizes the key range, and has a lower tilt angle, making your input more accurate and comfortable. 3.110 KEYS: Multi device keyboard with 110 keys design, charging time of 2 hours, use time of 80 hours, ultra long battery life. 4.ANTISLIP RUBBER PADS: Flexible antislip rubber pads are added to the bottom of the keyboard to prevent displacement during use. 5.SUPPORT OS: Press Fn+Q/W/E to switch the keyboard with for OS X, for IOS, for Android and for Windows respectively. specification:Item Type: Bluetooth Keyboard Material: Aluminum Alloy Bluetooth: 3.0 Support: For OS X, for Windows, for Android Number of Keys: 110 Keys Built In Polymer Lithium Battery: 180mAh Charging Time: 2 Hours Use Time: 80 Hours PackageList: 1 x Keyboard (Ship with Inbuilt Battery) 1 x User Manual 1 x Charging Cable NoteThe top of the keyboard is a variety of commonly used shortcut function keys