Track your dogs position in almost any terrain with Garmins Astro 430/T5 Mini Bundle. The T5 Mini is designed for smaller dog breeds with neck circumferences as small as 9.5. Top-mounted, high-sensitivity GPS antenna improves performance via an integrated GLONASS positioning system that maintains location even in heavy timber or deep canyons. Tracks up to nine miles away, sending precise locations as often as every 2.5 seconds. Astro 430 handheld device is compatible with additional mini and standard T5 and TT 15 dog devices to track up to 20 dogs. Pre-loaded Topo US 100K mapping and a free one- BirdsEye Satellite subscription. Hunt Metrics shows distance traveled, time afield and more. Garmin DriveTrack in-vehicle dog tracker and GPS navigator syncs wirelessly with your compatible Astro 430 handheld to help you keep track of your dog in the field. You can also receive dog status updates and alerts using your Garmin fenix 3 GPS watch (sold separately). BaseCamp allows you to view real-time GPS information on your computer. Micro-SD card slot and support for Topo US 24K, Garmin HuntView, City Navigator, Garmin Custom Maps and more (sold separately). Sunlight-readable 2.6 color touch-screen display. Handheld device has a waterproof rating of IPX7, while the collar is rated at 1ATM. Astro 430 is powered by two AA batteries (not included) for up to 20 hours, while a rechargeable lithium-ion battery (included) powers the T5 Mini for up to 30 hours. Type: Tracking Systems.