General description Widely used for locating lost pets, children, the elderly, vehicles (taxis, trucks, motorcycles, freezers, boats, etc.). This waterproof dog collar features a GPS tracker and Bluetooth tracking, making it an ideal anti-lost device for dogs and cats. It is designed for outdoor use and operates automatically without the need for a transmitter or remote control. Technical specifications Size: 3.9 x 1.7 cm Neckline adjustment range: 10 to 34 cm Battery: CR2016 (180 mAh) IP67 waterproof rating Usage Open the app and click the call button to make the device sound. Multiple users can use the app to locate pets. The device can stay in standby mode for 90-100 seconds and has a low battery reminder. A mobile phone can connect to up to 20 monitoring devices simultaneously. Other information The safety loop anti-choking device automatically buckles when external force exceeds 5 kg. Stability GPS signal strength is superior to RF signal strength, reducing the risk of