No monthly fee, PET GPS P03-GPS Tracker is free of charge for any service or monthly fee. Pet Tracker with collar is a pet finder that can be continuously monitored in real time, so that you can know exactly where your pet is and where it is moving, keep an eye on your pet's whereabouts at all times, and avoid pet loss or theft. Works with P03 Location Maps 365GPS APP - Simple one-click setup instantly connects the pet tracking collar tracker to the 365GPS APP on your app installed device to track your friend's every step in real time on your phone. Use this dog GPS tracker to see where your dog has been. (APP interface is in English) WATERPROOF, , LONG BATTERY LIFE -- The dog gps tracker is a compact and reliable device. Solid and Resistance, even in water. The dog tracker tag is powered by CR2032 button battery with super long standby time over 12 months and can be replaceable for long-term use. 360 REFLECTION -- This gps dog tracker collar with high brightness reflective webbing. Easier to find your dog under darkness and low light conditions. And can make the night of the vehicle or 's attention, keep safe your dog's night activities Adjustable dog collar size - Dog tracking collars with gps are easy to measure and cut to the desired length to fit perfectly around your dog's neck. Suitable for small, medium and pet or pet cats. The pet collar GPS tracker is made of high quality nylon and is compact and durable. Color: As Shown Material: nylon+plastic Package Contents: 1 x Pet Location Tracker 1 x Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.