Locating methods: GPS, LBS, AGPS, Wi-Fi Vibration alert for incoming calls Two-way o communication Mute automatic answering for voice monitoring Low battery and SIM card change alerts 2G GSM frequency bands: 850, 900, 1800, 1900 MHz GPRS Class 12, TCP/IP support Applications: Personal tracking, child tracking, elderly tracking, pet tracking, asset tracking, vehicle tracking, management, emergency situations, patient monitoring, lone worker safety, outdoor activities, mountaineering, exploration Real-time tracking GPS acquisition time: 60 seconds with cold start (open sky) GPS positioning accuracy: 10–15 meters (open sky) Wi-Fi positioning accuracy: 15–100 meters (in Wi-Fi coverage area) LBS positioning accuracy: 100–1000 meters Operating humidity: 5% to 95% RH Battery capacity: 400 mAh Color: Black and orange Material: Plastic Dimensions: 40.5 x 43.3 x 13.8 mm Package contents: 1 x SOS Fall Alarm Note: The package includes only the items listed above. Other items are not included. Note: Lighting and display settings may cause slight color differences between the image and the actual item. Measurement may vary by ±1–3 cm.