Feature 1Support System: The USB keyboard mouse is fully compatible with laptops and desktop computers, for OS laptop, for OS X , for Win 286 keys: The gaming keyboard has 86 keys retro round key concave keycap design, with glossy color, clear UV characters, fit the palm curve 3Ergonomic 1200DPI: The keyboard mouse set supports ergonomics, with 1200DPI mouse optical resolution 4Thin Film Technology: The keyboard mouse combo bottom technology adopts improved thin film technology, the sound is light and quiet, retro typewriter style, high key design brings a mechanical feel 5Sloping Panel: The pc keyboard has a tilting panel structure to ensure the wrist is at a relaxed angle, while also taking into account the clarity of the viewing angleSpecificationItem Type USBKeyboardMouse:Material: ABSWay of Working: WirelessKey Technology: Crater ArchitectureWhether to Support Ergonomics: SupportNumber of Keyboard Keys: 86 KeysConnection Method: 2.4G USB ReceiverMouse Optical Resolution: 1200DPIBattery Specification: 2 x AA Alkaline Battery (shipped without battery) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Keyboard1 x Mouse1 x Receiver1 x User ManualNoteshipped without battery