1.Precise Positioning: Anti Lost Tracking Device allows you to know exactly your exact location with 24-hour continuous real-time monitoring. Clearly understand the direction of your pet's movement Prevent your pet from being lost and stolen, and get back to your pet next time. 2.Ideal Tracker: Pet Tracking Device features remote monitoring. You can set the guardian's mobile phone number, and confirm the safety of your pet at any time. Provide a waterproof function, mobile phone query, track query, and silent care. 3.Incoming Call Function: Set the callback number. Smart Tracker will automatically dial the phone number you set. You can set an area around the locator and it will alarm immediately when pets enter or leave the area. Suitable for use in various environments. 4.Long Using Time: Dog Tracker has a long standby time. Excellent for home or travel use to prevent loss. If the battery is low, Alarm Tracker will send an alarm to remind you to replace the battery. 5.Carry Easily: Ideal use for locating kids, pets, luggage, wallets, mobile phones, etc. Anti Lost Alarm Sensor is small and portable. Allow you to take it with you conveniently. Specification: Name: Anti Lost Locator Product weight: 7g Size: about 3.5*3.5*0.5cm