Garmin Astro DC-40 GPS Dog Tracking Collar 010-11484-00.

Garmin DC 40 GPS Dog Tracking Collar - GPS tracking device
This rugged, all-weather collar combines a high-sensitivity GPS receiver and VHF antenna into an all-in-one transmitter that works with the Astro 220 to safeguard against your dog getting lost. Astro DC 40 sports a durable one-inch orange polyurethane collar that fits most e-collar receivers - eliminating the need to put two separate collars on a dog. Plus, collar lock uses a four-digit PIN number that helps prevent others from seeing your dog's whereabouts. When teamed up with the Astro 220, this system will have you hunting in no time. The DC 40, in combination with the Astro 220 pinpoints your dog's position every 5 seconds. An innovative charging connection with a flashing LED-charging indicator lets you know when the battery is ready to go. You will know if your dog is pointing, sitting, moving or treeing. Where your dog is. Where it's been. How fast it's moving and how far it's gone.
Attach collar and go
When teamed up with the Astro 220, this system will have you hunting in no time. The DC 40, in combination with the Astro 220 pinpoints your dog's position every 5 seconds. An innovative charging connection with a flashing LED-charging indicator lets you know when the battery is ready to go. You will know if your dog is pointing, sitting, moving or treeing. Where your dog is. Where it's been. How fast it's moving and how far it's gone