A top-mounted, high-sensitivity GPS/GLONASS receiver, TT 20 dog device uses LED beacon lights activated from its compatible handheld device. The lights work in low-light conditions and at night, and are visible up to 100 yards away.

Rugged and water-resistant to 10 meters, the tracking-only dog device with collar is tough enough to run wherever your dog runs, up to 4 miles away. TT20 ships with a 1 inch blue collar strap. Replacement straps are available in multiple colors (sold separately).