Go to radio shack if you have one or an electronics store and get a mini amplifier. They take a 9v battery. Then get a hand held tape player and a speacker with a plug that you can plug into the tape player. Hook the amplifier to the tape player and then the speaker to the amplifier. You just made an electronic call. Get some tapes. I prefer wounded cotton tail, although lots of people like bird calls for bobcats. Youll like pred hunting, you never know what your going to call up. Take a look at varmint Als website, google varmint al, and hes got a lot of useful tips as well as more detailed instructions on building the call. Mouth calls work well but they require some movement to operate and take a little while to master, not long but.... Electronic calls allow you to just sit there and move your eyes. Decoys work well to, nothing elaborate, a stuffed animal works just as well. The ones that move are nice but just more batterys you have to pack around.