This pre-owned or refurbished product has been professionally inspected and tested to work and look like new. How a product becomes part of Renewed, your destination for pre-owned, refurbished products: A customer buys a new product and returns it or trades it in for a newer or different model. That product is inspected and tested to work and look like new by -qualified suppliers. Then, the product is sold as an Renewed product on . If not satisfied with the purchase, renewed products are eligible for replacement or refund under the Renewed Guarantee. See more

Dimension(inches):2.4 x 6.3 x 1.4. Battery life - up to 20 hours (Astro 430). Hunt metrics - hunt metrics dog performance data shows distance traveled, time afield and more, so you can train your dog more effectively.Optional battery - optional in-unit rechargeable nimh battery Pack or uses standard AA battery power. Preloaded mapping - includes preloaded topo U.S. 100K mapping and a free 1-year birdseye satellite imagery subscription. GPS/glonass - high-sensitivity GPS and glonass satellite reception has the ability to track in more challenging environments than GPS alone. Expanded dog capability - track up to 20 dogs from a range of up to 9 miles.