SafeTrek Buddy II Spec. Download Guide Spec. Model : MSP581BCommunication Module : support UMTS/HSUPA/HSDPA/GSMPosition Module : support GPS+GLONASSIngress Protection Rating : IP 67SIM : Support Micro Sim CardBattery : 1000mAh / 3.7vCharging Cable : 1 m, USB patented magnetic charging cableIdeal Operating Time : From 12 hours to 21 days (standby time). It depends on using way and GPS/GSM/UMTS single receiving environmentRelative Humidity : 0 ~ 95% (noncondensing)Operating Ambient Temperature : 0℃ ~ 55℃Nonoperating Temperature : -20℃ ~ 80℃Dimensions : (L) 63 x (W) 51x (H) 24mmWeight : 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.