Features: Real time tracking and location history. Track every step- of your furry friend in real time on your phone. Look where your dog has been and what they have done. Support: real-time GPS/WIFI Cat 1/GSM positioning, SOS- for help, calling family number, electronic fence warning and reminder, historical track search, and power saving mode. Electronic fence: demarcate an area on map with equipment as the center, and give an alarm immediately after leaving the area. Historical track: search the running track of the equipment within three months -anytime and anywhere. Find the device: If the device lost, you can find the device through the mobile phone application. Specifications: Material: ABS- Size: Approx.60.3x33mm/2.37x1.30in Color: Blue, Green, Orange(optional） Package Includes: 1x Dog GPS Tracking Device note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color of the item.