The IdentiFlyer Ultra uses amazing digital technology to help you learn the calls of birds and frongs!  Includes the calls of 120 birds and 10 frogs.  Select birds by region of North America (Northeast, South, Central or Western), habitat, alphabetically, or by color.  Select a bird and press the dial to hear the song.  Includes belt clip for easy use in the field, and an earphone port.  Includes 2 AA batteries.