Bullet 1 – Lifetime Free based trackers like Tractive GPS. Bullet 2 – Lightweight & W Bullet 3 – Historical Route Pday comfort during explorations. Bullet 4 – 1-Year Battery Lifering per battery, reducing frequent charging. Paired with the free included collar, this long-lasting Bullet 5 – Complete Package & ect as a primary GPS tracker for pets or even as a kids’ tracker alternative. Easy setup, reliable performance, and peace of mind in one complete package.