A must for predator hunters, the wirelessly controlled Grim Speaker GS2 provides 110 dbs. of authentic calls proven by predator hunting expert Johnny Stewart. The unit comes pre-programmed with 10 sounds and is capable of holding up to 256 MB of calls downloadable via USB. Powered by four AA batteries, the Grim Speaker will run for six to eight hours and is controlled by a wireless fob (two AAA) that works up to 100 yds. away. Overall size is 5.5"x6.5", which makes it a packable unit for those long hauls afield. Price: $119. Contact: Hunter Specialties; (319) 395-0321; hunterspec.com.