Bolokuki Solar Cattle GPS Tracker 4G for Cow Sheep GPS Tracking Device Livestock Tracker Waterproof Long Standby Real Time Locator for Horses Hounds Rescue Dog Shepherd Dog with Collar Anti-Lost GT080 :
GPS Cattle Tag | Projects | Ingenuity Design Group
Solar Power Gps Animal Cattle Ear Tag Tracker Tbt300 - Gps/navigation - AliExpress