FOXPRO Fury Digital Higher Performance Gall Call Dual amplified speakers: one horn (high frequency), one cone (low frequency), Three playback modes: Continuous (default) - plays sound until you stop it, Single - plays sound once, Sequential - plays one sound than advances to next sound, 24 bit audio for unrivaled audio performance, Two external speaker jacks for adding speakers; auxiliary jack for decoy, change jack, Rugged ABS housing