Features: Multiple positioning modes, no distance limitation, fast real-time accurate positioning. When the sound around the locator is greater than 60 decibels, the locator will automatically call the set cell phone number. Built-in 350 mAh battery, the battery is full and ready to carry. High-definition silicon microphone, can be 360 acquisition of audio sources, acquisition of sound faster and more stable. Built-in high-strength industrial magnetism, can be directly adsorbed on metal surfaces, such as under the car, under the car seat. Specification: Positioning Accuracy: 10 - 50 meters Memory Support: TF card 32GB Recording Range: 80 square meters Platform View: SMS + APP + computer Communication Frequency: 850 / 900 / 1800 / 1900MHz Charging Input: 5V voltage Working Temperature: -20-85 Network Standard: GSM / GPRS includes: 1 * GPS Tracker 1 * USB Cable 1 * Manual