only Support 2G network GSM card. True GPS: Supports full-function positioning. Support WIFI positioning, GPS positioning, AGPS positioning, intelligently select the mode according to the location environment, to achieve power saving and fast and accurate positioning. Both indoor and outdoor use Long battery life. High-definition Real-life Street Map: High-definition real-life street map, allowing you to find the location of the elderly vehicle faster and more accurately in an unfamiliar environment. Voice-activated Listening-continuous Recording: No manual instructions are required, automatic continuous recording when someone is talking. SOS Fuction One Button-emergency Help: When the elderly and children are lost and encounter danger, press the SOS button for 3 seconds and release, and the host will actively call the emergency call to call the police. Positioning Query, Electronic Fence, Low battery alarm,only Support 2G network GSM card. only Support 2G network GSM card. True GPS: Supports full-function positioning. Support WIFI positioning, GPS positioning, AGPS positioning, intelligently select the mode according to the location environment, to achieve power saving and fast and accurate positioning. Both indoor and outdoor use Long battery life. High-definition Real-life Street Map: High-definition real-life street map, allowing you to find the location of the elderly vehicle faster and more accurately in an unfamiliar environment. Voice-activated Listening-continuous Recording: No manual instructions are required, automatic continuous recording when someone is talking. SOS Fuction One Button-emergency Help: When the elderly and children are lost and encounter danger, press the SOS button for 3 seconds and release, and the host will actively call the emergency call to call the police. Positioning Query, Electroni