Pro Wireless 2.4GHz Optical Mouse Keyboard Combo Set Features: Up to 10m working distance. 2.4GHz 2way fast digital RF 16 auto hopping channel with 65K ID. Reliable keyboard with spill-resistant design. Stand-profile keys provides comfortable silent touch. Long battery life. Micro receiver. System Requirement: IBM PC or compatible. Available USB port. Windows 2000/XP/VISTA. Note: USB receiver can be located in the mouse battery compartment. Plug and play simplicity for Windows PCs: Works right out of the box with Windows 10 or later, Windows 8, 7, Windows Vista, Windows XP, Chrome OS. Not Bluetooth compatible. (Kindly refer the user manual given below for troubleshooting steps). No installation required. 100. Keyboard : 1.104 keys compatible layout2.Spill resistant design 3.Stylish and contoured design4.Membrane tactile switches give comfort to your fingers5.Laser printing keycaps for longer wear.Mouse :1.Precise optical technology 2.Enhanced precision with optical engine; no cleaning required 3.High-speed tracking and control 4.Unique shape comfortable for either hand 5.Instant setup with no software drivers necessary Specification Keyboard Keys: 104Switch Mechanism: MembraneTravel Length:3.6mm Input power: 5.0V from USB portPower Consumption: 50mA(key pressed)Interface: USB 1.1Dimension:436 x 132.3 x 30 mmWeight: 460gMouse Device Type: Optical Mouse Connection Type: USBHand Orientation: Ambidextrous Tracking Method: Optical Buttons: 3 Scrolling Capability: Yes Resolution: 1000 CPI