How to pair my blue tooth on my android?

Blue tooth device is visible on my android but not being paired on it. suggest how to pair it.

Notification appears that it could not paired due to pass key error, even any option does not appear to enter pass key....

crwdns2893858:0crwdne2893858:0 crwdns2893862:0crwdne2893862:0


crwdns2889612:0crwdne2889612:0 0