Keyboard/Keypad Connectivity Technology: WirelessKeyboard/Keypad Wireless Technology: RFNumber of Keys: 103Hot Keys: Multimedia, Mute, PlayLocalization: English (US)Pointing Device Connectivity Technology: WirelessPointing Device Wireless Technology: RFMovement Detection: LaserNumber of Total Buttons: 3Scroller Type: Scroll WheelErgonomic Fit: SymmetricalKeyboard/Keypad Host Interface: USBPointing Device Host Interface: USBPackage Contents: Ultraslim 0A34032 Keyboard and Mouse,USB Receiver,Limited Warranty: 3 YearOffering premium performance and sophisticated simplicity, the Lenovo Ultraslim Plus Wireless Keyboard & Mouse offers easy-access controls and high-performance laser precision to help you get more done, comfortably. Its progressive and inviting design with black finish and accents will complement your office or home setup and help save valuable desk space.