bluetooth audio receiver

bluetoothctl

# bluetoothctl 
[NEW] Controller 00:02:72:DE:16:59 manheim [default]
[NEW] Device 00:10:61:00:01:92 GT BT-Receiver
[bluetooth]# devices
Device 00:10:61:00:01:92 GT BT-Receiver
[bluetooth]# info 00:10:61:00:01:92
Device 00:10:61:00:01:92
        Name: GT BT-Receiver
        Alias: GT BT-Receiver
        Class: 0x240404
        Icon: audio-card
        Paired: yes
        Trusted: yes
        Blocked: no
        Connected: no
        LegacyPairing: no
        UUID: Audio Sink                (0000110b-0000-1000-8000-00805f9b34fb)
        UUID: A/V Remote Control        (0000110e-0000-1000-8000-00805f9b34fb)
[bluetooth]# connect 00:10:61:00:01:92
Attempting to connect to 00:10:61:00:01:92
[CHG] Device 00:10:61:00:01:92 Connected: yes
Failed to connect: org.bluez.Error.Failed
[CHG] Device 00:10:61:00:01:92 Connected: no
[bluetooth]#

hcidump

> ACL data: handle 21 flags 0x02 dlen 16
    L2CAP(s): Connect rsp: dcid 0x0064 scid 0x0041 result 1 status 2
      Connection pending - Authorization pending
> ACL data: handle 21 flags 0x02 dlen 8
    L2CAP(d): cid 0x0040 len 4 [psm 25]
      AVDTP(s): Discover rsp: transaction 14 nsp 0x00
        ACP SEID 1 - Audio Sink
< ACL data: handle 21 flags 0x00 dlen 7
    L2CAP(d): cid 0x0063 len 3 [psm 25]
      AVDTP(s): Capabilities cmd: transaction 15 nsp 0x00
        ACP SEID 1
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 21 packets 1
> ACL data: handle 21 flags 0x02 dlen 20
    L2CAP(d): cid 0x0040 len 16 [psm 25]
      AVDTP(s): Capabilities rsp: transaction 15 nsp 0x00
        Media Transport
        Media Codec - SBC
          16kHz 32kHz 44.1kHz 48kHz 
          Mono DualChannel Stereo JointStereo 
          4 8 12 16 Blocks
          4 8 Subbands
          SNR Loudness 
          Bitpool Range 2-53
        Content Protection
          02 00 
> ACL data: handle 21 flags 0x02 dlen 16
    L2CAP(s): Connect rsp: dcid 0x0064 scid 0x0041 result 0 status 0
      Connection successful
< ACL data: handle 21 flags 0x00 dlen 12
    L2CAP(s): Config req: dcid 0x0064 flags 0x00 clen 0
> ACL data: handle 21 flags 0x02 dlen 16
    L2CAP(s): Config req: dcid 0x0041 flags 0x00 clen 4
      MTU 895 
< ACL data: handle 21 flags 0x00 dlen 18
    L2CAP(s): Config rsp: scid 0x0064 flags 0x00 result 0 clen 4
      MTU 895 
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 21 packets 1
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 21 packets 1
> ACL data: handle 21 flags 0x02 dlen 14
    L2CAP(s): Config rsp: scid 0x0041 flags 0x00 result 0 clen 0
      Success
< ACL data: handle 21 flags 0x00 dlen 12
    L2CAP(s): Disconn req: dcid 0x0064 scid 0x0041
< ACL data: handle 21 flags 0x00 dlen 12
    L2CAP(s): Disconn req: dcid 0x0063 scid 0x0040
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 21 packets 1
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 21 packets 1
> ACL data: handle 21 flags 0x02 dlen 12
    L2CAP(s): Disconn rsp: dcid 0x0064 scid 0x0041
> ACL data: handle 21 flags 0x02 dlen 12
    L2CAP(s): Disconn rsp: dcid 0x0063 scid 0x0040
< HCI Command: Disconnect (0x01|0x0006) plen 3
    handle 21 reason 0x13
    Reason: Remote User Terminated Connection
> HCI Event: Command Status (0x0f) plen 4
    Disconnect (0x01|0x0006) status 0x00 ncmd 1
> HCI Event: Disconn Complete (0x05) plen 4
    status 0x00 handle 21 reason 0x16
    Reason: Connection Terminated by Local Host