Go to the pawn shops. They usually have lots of pretty good used speakers so cheap that they're almost disposable.

Don't forget about mouth calls,I have a fox pro and it is worth every penny but we find we use mouth call more often than not.My son is 18 and loves to use his mouth calls,he feels a sense of accomplishment when he calls them in.If he can pick it up so can you,it a great sport welcome to it and good hunting!

Finally got to talk to my nephew about his setup. He uses the iHunt app and a Pyle cone speaker with a 16 foot wire connection to his iPhone. He called up two packs of coyotes his first outing. I may go that route myself for around $3 to $30 depending on what cone speaker I use. I am also looking at Bluetooth wireless speakers good for about 30 feet for around $30. See lots of these on Amazon.com. Its nice to have lots of volume but remember a cotton tail only has a little pair of lungs and they can hear that for about 2 miles. Most of these have an internal amplifier and run on batteries.