Primos Elk 3-Pak Sonic Dome Elk - The best value on our newest elk mouth calls. The collection of calls will allow you to reproduce every distinct sound that elk make; cows, calves, spikes, satellite bulls, mature bull growls, bugles and chuckles, as well as Estrus cow cries. These Sonic Dome® calls truly Speak The Language®. Mini Sonic Dome® Double Sonic Dome® Single Sonic Dome® Triple See Thru Mouth Call Case