I have a johnny stewart preymaster and it is a real good one!It is very loud too.Only bad thing is though,it has a cord that runsfrom the remote to the speaker,but for the price you can't beat them.I have no problem rolling it up and rolling out when im coyote hunting.I got mine brand new still in the wrapper from a member here for $80 I think,I see them sell for $100 in stores.They also make a wireless prey master for $200.But for that extra $100 i can roll and un roll the cord,it also comes with differ sound cards,you can get them for deer and turkey,along with your preadator.