how to connect logitech wireless keyboard to usb?
['Connect.', 'Step 1: Insert the Unifying receiver into a USB port on your computer.', 'Step 2: Pull to remove the yellow battery tab.', 'Logitech Options. K400 Plus is a plug and play keyboard loaded with features right out of the box. ... ', 'Logitech Unifying wireless technology. ... ', 'Replace batteries.', 'Customer Support.']