how can i send any file type from my app via Bluetooth to others phone?

iam using vb and this code to connect

```
    PeerFinder.AlternateIdentities("Bluetooth:Paired") = ""
    Dim peers = Await PeerFinder.FindAllPeersAsync

    If peers.Count = 0 Then

        Return

    Else

        Dim pi As PeerInformation = peers(4)

        Dim socket As New StreamSocket()
        Await socket.ConnectAsync(pi.HostName, "1")

end if

```

i didn't find any samples in windows phone developer center that's explain how to send files via Bluetooth to other phone