Model Number: V28-#9120 Brand Name: Wearable Key Specifications/Special Features: Feature:Real-time trackingHistorical route playbackGeo-fenceSOS alarm & push-button callingTalking clockFall alarmVibrate on ring for incoming call remindTwo way audio communicationMute automatic answering calls for voice monitorLow battery & SIM card change remindersNote: The product consists of hardware device and Apps in smartphone, only with both of which can users make full use of this 2G GPS tracking SOS pendant.

Specifications:
2G GSM: 850/900/1800/1900MHz
GPRS standard: Class 12, TCP/IP
GPS locating time: 60sec with cold boot (open sky)
29sec with warm boot (open sky)
5sec with hot boot (open sky)
GPS positioning accuracy: 10-15m (open sky)
WiFi positioning accuracy: 15-100m (WiFi area)
LBS positioning accuracy: 100-1000m
Working temperature: -18℃~ +45℃
Working humidity: 5%~ 95%RH
Device host size: 40.5*43.3*13.8mm
Device host net weight: 25g
Battery capacity: 400mA

Package included:
1 x main host
1 x USB charging cable
1 x lanyard
1 x manual