The Hyper LIP® Single with Tone Converter™ makes calling in elk easy. The open single-reed reproduces the high pitches of cows and calves. Removing the Tone Converter™ allows louder calling when locating or calling bulls from longer distances. The Hyper LIP® Single with Tone Converter™ takes all the guesswork out of calling bulls up close. - Open single-reed achieves higher pitch of cows and calves - Tone Converter™ produces mellow and softer tones so important for calling in those call-shy bulls