Battery life up to 80 hours - compared to the regular TT15 at 20-40 hours
Compatible with the Alpha 100, Alpha 200, Alpha 200i, Alpha 10, and Astro 430 handhelds.
Features:
HUGE battery life! up to 80 hrs!
Rescue mode
Sleep mode (for extended battery life during long hunts)
Rugged, water-resistant design that are tough enough to run wherever your dog runs
High sensitivity GPS and GLONASS receivers track your dog up to 9 miles away
LED beacon lights
Offers 18 levels of continuous and momentary stimulation, plus audible tone and vibration modes.
AND MORE!