Effective, realistic and clear audio to bring in magpie geese Bluetooth compatible to sync to a Bluetooth speaker in the field Sounds can play in the background of your phone allowing you to text, take pictures and surf the internet without disrupting the magpie goose calling sounds Long soundtracks allow you to set the goose calls and focus on magpie goose hunting Connect to your speaker system with audio cables or Bluetooth (cables not included) No more forgetting to grab your MP3 player or me