Why gps tracker need sim card? --GPS device is a mini Featured phone system , just without the keyboard .GPS device system consist of mini phone system+GPS modue +Wifi modue.GPS device work with smart phone app and Cloud server , all GPRS communications via. Sim card through Operator Cellular 's network. It's available for global real time and real Googlemap tracking if the sim is available for international roaming. GPS work with smart phone app is phone to phone. --Any GPS Tracker has a receiver to triangulate its own position from the satellite signals. All the GPS trackers need a SIM card in order to achieve connectivity. SIM cards are what allow location transmission, sending audio data, and receiving commands to turn on audio and other advanced features.

KIT Agreement 1. IntroductionWelcome to use the software and related services provided by Company name("KIT" "we" or "us") .The software and related services（“our services”） provide to you refer to the client application which is labeled " KIT " by we owned legally and operated

Kids i-tracker User Agreement, for all Kids GPS Smart watch, Senior GPS healthcare Tracker, Smart fitness bracelet, Personal mini GPS, Pets mini GPS tracker, Automotive Vehicle GPS tracker - Shenzhen Yushengchang Technology Co.,LTD

OEM Customized Branded App for Oversea clients

Overseas Clients video for kids GPS watch and senior healthcare

New Born Baby protection -KIT ----Protect new born baby from the stolen in hospital We worked with Indian clients to make the GPS trackers for Indian South hospitals to protect the new born baby from the thief stole .We made the APP and customized production