sdptool search --bdaddr 00:02:76:D3:85:43 HS
Searching for HS on 00:02:76:D3:85:43 ...
Service Name: Headset
Service RecHandle: 0x10001
Service Class ID List:
  "Headset" (0x1108)
  "Generic Audio" (0x1203)
Protocol Descriptor List:
  "L2CAP" (0x0100)
  "RFCOMM" (0x0003)
    Channel: 2
Language Base Attr List:
  code_ISO639: 0x656e
  encoding:    0x6a
  base_offset: 0x100
Profile Descriptor List:
  "Headset" (0x1108)
    Version: 0x0100