The 350+ programmable game call offers professional grade durability, sound quality, 300 yard remote activation and features that make it a snap to operate during a hectic predator stand. Developed by and for professional predator hunters who demand performance and still want a practically priced product. ICOtec recommends that customers avoid using Duracell batteries in our callers. We recommend alkaline 1.5V batteries, Lithium 1.5V batteries or the TNT Rechargeable AA Battery Kit from ICOtec. *With direct line-of-sight you should get 80-100 yards of Bluetooth reception with the game call on the ground and 100 yards if you raise the call at least 2 feet off of the ground.