SafeTrek Mini Spec. Download Guide Spec. Model : MSP581B Communication Module : 4G LTE Position Module : support GPS+GLONASS Ingress Protection Rating : IP 67 SIM : Support Micro Sim Card Battery : 1000mAh / 3.7v Charging Cable : 1 m, USB patented magnetic charging cable Ideal Operating Time : From 12 hours to 21 days (standby time). It depends on using way and GPS/GSM/UMTS single receiving environment Relative Humidity : 0 ~ 95% (noncondensing) Operating Ambient Temperature : 0℃ ~ 55℃ Nonoperating Temperature : -20℃ ~ 80℃ Dimensions : (L) 63 x (W) 51x (H) 24mm Weight : 67g Download Please use Google Play (Android) or App Store (iOS) and search “traceez icar” or use the phone to scan the QR code here for download. Guide Protect your car never rest.