An apparatus for calling deer, and methods of its use; the apparatus having an adjustable sliding element moved longitudinally by the user to adjust the dimension x of a vibrating reed to vary the sound generated by the deer call. The device includes a barrel assembly with a vibrating reed mounted therein on a reed holder. A metal slider mounted for longitudinal movement within the barrel assembly has a tab extending outwardly therefrom so as to be adjustable without disassembly of the device.