Free: Contests & Raffles.
I had a flextone echo. Don't remember the model, but it was $150 from cabelas. The sounds are high quality. That's about all the good I found in it. The Rennie was horrible to use, and the volume was basically non existent. You can't add any sounds to it. I returned it, and bought a foxpro wildfire 2. $50 more than the flextone, and I like it much better. I got it from allpredatorcalls.com you can pick what sounds you want.