1. put switch button on "wired" position(middle), its in Wired mode, connect keyboard to computer via
equipped
usb cable from supplier
2. put switch button to "WIFI" position(left), its in 2.4G wireless mode, connect keyboard by
equipped
usb dongle.
3.
put switch button to "BT" position(right), its in BT mode, and press FN+Q, FN+W, FN+E for 3 seconds to enter bluetooths pairing(can connect 3 devices)