iHunt Bluetooth Speaker optimized for game calling with the iHunt Mobile App. Features up to 150 yds Bluetooth Range, game call and music mode, anti-slip exterior, 10 hrs continuous play and over 750 sounds from more than 50 species. Connect up to two speakers for dual pairing and surround sound. When linked to the iHunt app your phone becomes the controller and the ability to create overlapping playlist form over 750 sounds.