The Mantis™ Pro 400 Bluetooth Electronic Game Call from Western Rivers® allows you to stream additional game calls from a paired device, such as your smartphone. The Mantis Pro 400 has 1GB of internal memory to store 400 permanent sounds, and it accepts SD cards to expand call capacity. A 4" reflex loudspeaker puts out 105 to 110db of sound, and 2 external jacks accommodate secondary speaker(s). Sound overlay allows two sounds to play simultaneously to fool wily predators. The Mantis Pro 400 Bluetooth Electronic Game Call comes with an integrated and removable remote control, featuring a 2.0" LED backlit screen. The remote reaches out to 300 yards, so the shooter can stay hidden out of direct eyesight of approaching game. An external power jack accommodates a motorized decoy (not included). The Mantis Pro 400 is powered by 8 AA batteries (not included)