Choler Smart Bluetooth GPS Anti-lost Alarm Device For Collars Pets Dog Cats Kids Elderly General (blue) Bidirectional-losing mobile phone anti-lost and beyond the set distance, the common alarm. A key thing to find, use the article APP induction, press the patch, can be found in mobile phones. Location information, goods and mobile phones disconnected, APP will record the location of a disconnected on the map. Low power consumption, a button battery working for 3 months or more. Multi-task management, multiple items concurrent connections, while reminding.