I've had this collar 6 months. I use coyote decoy dogs and my dog can no longer hear the tone. Comes with 2 receivers and will run 3. Has an extra charging cradle. $615 new. For sale for $550, delivered. Excellent condition. I am on predatormasters.com and predatortalk.com under this same screen name if anyone needs to verify me. Thanks 918-902-2157
