Feature: 1. GPS locator collar, oneclick pet search, providing fast, convenient and detailed positioning. 2. The size of the collar can be adjusted arbitrarily, soft and comfortable, and can be used by large and small pets. 3. Fast magnetic charging, specially equipped with charging cable, fast charging speed. 4. It can be used as an electronic virtual fence, setting pets to run in/out of the fence to send reminders. 5. Support historical track playback, which is convenient for finding pets quickly and preventing pets from being lost. 6. Deep waterproof, rainproof, stable performance, suitable for dogs, kittens, cattle, sheep, etc. 7. The battery has a large capacity and long battery life, farewell to frequent charging, and easy to use. Specification: Item Type: Pet Locator Collar Material: Polyester + Rubber Purpose: Pet Positioning, Anti-Loss Battery Type and Model: Li-Ion Battery 602530 (500mAh) (Built-In) Life Time: 7 Days Positioning Method: GPS/BeiDou WiFi/LBS Waterproof Performance: Waterproof Size: (Manual measurement, there is a 1-2CM error) Length: Approx. 48cm / 18.9in Width: Approx. 2.5cm / 1.0in Maximum Circumference: Approx. 19cm / 7.5in Minimum Circumference: Approx. 14cm / 5.5in How to Use: 1. Turn on the activation receiver 2. Insert the SIM card 3. Download the corresponding APP on the mobile phone and set the corresponding options 4. Set the link receiver via APP 5. Install the receiver on the collar and wear it to the dog. Package List: 1 x Locator1 x Collar1 x Card Needle1 x Charger1 x Manual