<ul><li>WIRELESS BLUETOOTH KEYBOARD MOUSE COMBO CONNECT VIA BLUETOOTH ONLY (WITHOUT USB DONGLE) Ultra slim Design Bluetooth Connectivity Keyboard And Mouse Both Are Silent keys Keyboard connect Via Bluetooth only and requires 2xAAA batteries (batteries not included in package)Mouse have dual mode option connect via Bluetooth or usb dongle Mouse is rechargeable no need any extra batteries Press ctrl + C button in keyboard for Bluetooth pairing then connect if you show any password on your screen then type from this keyboard and press Enter button on the keyboard Keyboard and mouse both have on/ off button</li></ul>