2.4 GHz Wireless Desktop MK320 Set offers up to a 10 meter range, even in the most crowded wireless environments, plus 128-bit AES encryption for the keyboard. The sculpted wireless mouse is comfortable for home and easy to take with you for your notebook. Simply snap the receiver on the mouse and go. Both keyboard and mouse offer extended battery life. Wireless desktop features instant-access hot keys to watch videos, listen to music, or launch applications including your calculator, email program, media player and more without installing software. Full-size keyboard features low-profile keys and an integrated number pad. Manufacturer: Logitech Manufacturer Part Number: 920-002836 Manufacturer Website Address: http://www.logitech.com Brand Name: Logitech Product Line: Wireless Desktop Product Model: MK320 Product Name: Wireless Desktop MK320 Keyboard and Mouse Product Type: Keyboard & Mouse Keyboard/Keypad: Keyboard/Keypad Connectivity Technology: Wireless Keyboard/Keypad: Keyboard/Keypad Wireless Technology: RF Keyboard/Keypad: Hot Keys: Calculator Pointing Device: Pointing Device Connectivity Technology: Wireless Pointing Device: Pointing Device Wireless Technology: RF Pointing Device: Movement Detection: Optical Pointing Device: Scroller Type: Scroll Wheel Interfaces/Ports: Keyboard/Keypad Host Interface: USB Interfaces/Ports: Pointing Device Host Interface: USB Battery Information: Battery Size Supported: AA Physical Characteristics: Keyboard/Keypad Color: Black Physical Characteristics: Pointing Device Color: Black Package Contents: Wireless Desktop MK320 Keyboard and Mouse USB receiver USB range extender 2 x AA (keyboard) batteries 1 x AA (mouse) battery (pre-installed) User documentation Device Supported: Computer Green Compliant: Yes Green Compliance Certificate/Authority: RoHS