backspace
Pairing keys: Before first time use, press and
release the enter and backspace keys, once and
simultaneously. Pairing LED flashes blue.
1, Charging indicator LED: Battery
charging - red on; Charged full - off.
2, Pairing indicator LED: flashing blue.
3, Windows Num Lock indicator LED:
Num Lock on & typing - blue on;
Num Lock off - off.
3
On/Off switch
Charging
port
To USB power adapter
or a computer