Belli805 years ago000I already have an M720 mouse from Logitech, can I then also connect the keyboard with only one USB dongle, e.g. the mouse?Show in original language (German)Bench0005 years ago • purchased this product000purchased this productI use the combo (mouse + keyboard K780) exclusively with Bluetooth (without the USB dongle). Works flawlessly across different devices. Maybe this answers your question indirectly or offers you an alternative ;-)?Show in original language (German)Comment1 comment