def bt_device_type(device_type):
  if device_type == 5898764 or device_type == 'Android':
    return 'Android'
  if device_type == 7078144 or device_type == 'computer_ubuntu14':
    return 'computer_ubuntu14'
  if device_type == 786700 or device_type == 'computer_ubuntu16':
    return 'computer_ubuntu16'
  if device_type == 655620 or device_type == 'computer_windows':
    return 'computer_windows'
  if device_type == 2360324 or device_type == 'headset':
    return 'headset' #耳机
  if device_type == 2360328 or device_type =='speaker':
    return 'speaker' # 扩音器
  if device_type == 263208 or device_type == 'SV':
    return 'SV' #蓝牙音响
  if device_type == 7995916 or device_type == 'phone':
    return 'phone' #苹果设备
  if device_type == 3670284 or device_type == 'MACBook':
    return 'MACBook'
  if device_type == 7936 or device_type == 2752780 or device_type == 'PC':
    return 'PC'
  if device_type == 6947088 or device_type == 'iPad':
    return 'iPad'
  return 'unknown'