Check the listing for details. Quick Track Dog Tracking Collar 224.855 Use with Garmin GPS or shock collar. Condition: Used. Listed at 84.99 USD. Refurbished- Quick Track Dog Tracking Collar Freq. 224.855 Available on red or black collar strap-your choice. Please use "contact seller" feature to contact us with preferred color (if no color preference is stated we will send on red). These collars have our "Super-Mag" transmitter, the strongest on the market. Collar is the slide on "Sidekick" design which slides easily onto a Garmin GPS collar or training/shock collar. User changeable antenna is easily replaced if chewed by a young hound or hog/bear. Get them while they last. We ship via USPS Priority mail to the United States only. We will ship collar as soon as payment is received. Please feel free to contact us with any questions and or concerns. Thanks.