Phantom calls are the leader in high quality digital-call technology. The groundbreaking design features both movement sounds and vocalizations playing up to two sounds simultaneously and even overlapping the same sound. The Phantom Pro-Series Wired uses an ABS all weather 15-watt speaker and with 126db can be considered one of the loudest calls out there. This system is powered by 8 AA batteries for long battery life, up to 16 hours at high volume usage. We do recommend using alkaline batteries. The Phantom pro series has a rubber keypad, on/off button and indicator light as well as a low battery light and a mute button. The interchangeable sound modules are available to enhance your calling needs all year round. Each Phantom Pro-Series System comes with 1 sound module. It is recommended that you check with your local DNR or the legal use of electronic wildlife calls. Also features 60 foot speaker wire, 2 detachable belt clips, 16 function 3 channel remote transmitter up to 200 yard range, 2 long range antennas, and complete instruction manual. The module sounds on this unit are: hand call, Hand Coax, Lip Squeak, KiYi, Mouse Squeak, Jack Rabbit Distress, Jack Rabbit Coax, Cottontail distress, Cottontail Coax, Fawn Bawl, Baby Bobcat, and Snowshoe Hare.