1Function: With convenient round hot keys, you can easily manage media, email shortcuts, screen control, Internet and search functions. 2USB Receiver: Drive keyboard and mouse at the same time, save space, leave SB for more devices, no transmission line, and clean office. 3Shape Design: The appearance is bursting, multi color mixing, multi layer spraying scheme brings brand new visual and tactile experience. 4Features: The bottom layer adopts improved film technology, retro typing style, and the codewords are light and quiet, and the hand feels better. 5Broad Compatibility: The combination supports for Windows 7,for Windows 8, for Windows 10, for Windows XP, for OS X. Item Type: Keyboard Mouse Combo Material: ABS Keyboard Keys: 86 Keys Support System: For Windows XP,for Win7.for Win8,for Win10,for OS X,for Linux,Etc. Mouse / Keyboard Interface: USB Receiver Battery Specifications: 1 x AA Battery (Mouse; Not Included), 1 x AA Battery (Keyboard; Not Included) Keyboard Size: Approx. 310 x 140 x 26mm / 12.2 x 5.5 x 1.0in 1 x Keyboard 1 x Mouse 1 x USB Receiver The mouse and keyboard are without batteries.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.