No monthly fee & easy to use The GPS tracker for dogs and cats requires no monthly fee. The tracker sends out a secure signal every two seconds that is detected by nearby Apple devices (mobile, tablet, computer) and uploaded to iCloud to show the exact location on the map. Easy and safe to keep track of your pet in real time. Built-in speaker & long battery life With the built-in speaker, you can play a sound to quickly find your pet when it's nearby. The GPS collar weighs only 10 grams and is both durable and shockproof. The battery has up to 12 months of standby time and can be easily replaced for long-lasting use. Flexible & versatile use The OBOSOE tracker is compatible with both Android and iOS. If your pet doesn't like its current collar, you can easily attach the tracker to a new collar or other equipment. Wide range of uses Perfect for dog and cat collars, bags, keys, backpacks and suitcases. A versatile aid that gives you peace of mind and ensures you never lose what you love. The package contains: 1 × pet collar 1 × GPS tracker 1 × battery 1 × user manual