Thank you for visiting our website. In order to better serve our customers, we have discontinued large mammal (anything larger than deer or sheep) products. We are a boutique manufacturer who specializes in lightweight GPS products in limited quantities. Our orders are 100% custom made by hand with flexible designs and battery choices. As only a few companies in this industry provide quality small GPS products, we have decided to focus on what we are best at.If you are looking for Iridium GPS trackers for foxes, medium size cats, Tasmanian devils, or any other species that are similar in size to these species, we make a Lightweight Iridium Collar starting at 200 grams. Please click here to read more about the product. If you are looking for smaller GPS with long range radio communication, our lightweight products weigh 7 grams and up. Please visit our product line up page here to read more about the product.