Focus on the hunt, not your equipment, with T 5X, the dog tracking device with up to 80 hours of battery life. Plus, with a compatible Garmin handheld device, sleep mode allows you to remotely put your device to sleep, extending battery life even further. This high-sensitivity GPS and GLONASS receiver tracks your dog up to 9 miles away and features a rugged, water-resistant design tough enough to run wherever your dog runs. LED beacon lights, activated from your compatible handheld, help keep track of your dog in the field. T 5X is compatible with all existing Alpha®, PRO 550 Plus and Astro® 430 handheld devices from Garmin. You can easily update your device via Garmin Express™ software, available for both Mac® and Windows® devices.