(2) Our this tracker need to use a sim card,the package has no include any sim card,please buy the sim card from your local market.   RF-V43 4G LTE Tracker Waterproof Pet Tracker WIFI Tracking Pet Dog LED Light Voice Monitor Dog Gps Tracker For Tracking System   Version B bands combination: 4G-FDD: Band 1/2/3/4/5/7/8/12/20/28A 3G-WCDMA:Band 1/2/5/8 2G-GSM:Band 2/3/5/8 GPS locating time: 30sec with cold boot (open sky) 29sec with warm boot (open sky) 5sec with hot boot (open sky) GPS positioning accuracy:5-15m (open sky) WIFI positioning accuracy:15-100m(Under WIFI range) Working temperature:-20℃ ~ +45℃ Working humidity:5% ~ 95% RH Host size: 52(L)*42(W)*15(H)mm Host Net weight: 35g Battery capacity: 500mA   RF-V43 4G LTE Tracker Waterproof Pet Tracker WIFI Tracking Pet Dog LED Light Voice Monitor Dog Gps Tracker For Tracking System   Product Name:4G Pet tracker   GPS type: GPS Tracker   Gps Module: Yes   Voltage: 12V   Model Name: RF-V43   Out Power: 5W   Item Size: 52*42*15mm   Special Feature: Waterproof   GPS positioning accuracy: 5-15 meters (outdoor open sky)   WIFI positioning accuracy: 15-100 meters.(with WIFI signal coverage)   Working temperature: -20 ~ +45degrees   Working humidity: 5% ~ 95% RH