Q: Its about Bluetooth of Ipad Air? Please help ?

The devices do not use bluetooth to interface with each other.

Aamir Khan Niazi wrote:

 

i am trying to connect my iphone 4 and ipad air,

To do what?  The only thing you can do through bluetooth between iDevices is share the internet connection of one to the other, and only if both your cell plan, and carrier support the feature.

To get them to see each other you need to turn on Personal Hotspot.

Other than that there is nothing that can be done through bluetooth, and as such no way to pair them.  (No file transfer through bluetooth)

http://support.apple.com/kb/HT3647

You can connect things like speakers, keyboards, earphones, hands free systems, in car media centers, GPS devices etc...to your iPad or iPhone using bluetooth.

To share the internet connection from your Phone to your iPad you need to turn on Personal Hotspot.

iOS: Understanding Personal Hotspot

http://support.apple.com/kb/ht4517

Your Cellular service Company/carrier needs to support this, and make it available on your Cellular service plan for the option to be there.

If your plan with your cell carrier allows it, yes:

http://support.apple.com/kb/HT4517

Regards.