Astro is the premier high-sensitivity GPS-enabled tracking system for sporting dogs. This unique system pinpoints your dog's position and shows you exactly where he is, even when you can't see or hear him. The new Astro 320 handheld GPS device has features that hunters have been asking for - like increased range, a simplified user interface and must-have mapping capability.
Specifications and Features:
Extended range antenna
Range: DC-40: 9 miles (line of sight)
Frequency band: MURS
Vibration mode: yes
Tracks up to 10 dogs simultaneously
Built-in memory: 1.7 GB