Logitech MK950 Signature Slim Wireless Keyboard and Mouse Combo, Sleek Design, Quiet Typing and Clicking, Switch Across Three Devices, Bluetooth, Multi-OS, Works with Windows and MacBrand Logitech Manufacturer Logitech, Logitech, Logitech Logitech India Customer Care Toll free Number 1800 572 4730 (9: 00am to 6: 00pm Mon Fri), Logitech India Customer Care Toll free Number 1800 572 4730 (9: 00am to 6: 00pm Mon Fri) Colour Black & Grey Item Height 40 Millimeters Item Width 12. 7 Centimeters Product Dimensions 40 x 12. 7 x 4 cm; 786 g Batteries 1 AA batteries required. (included) Item model number 920 012475 Power Source Battery