Rtrac S là một ứng dụng theo dõi GPS cho việc chăm sóc gia đình
Rtrac S is a mobile application of GPS tracking system based on cloud server for the purpose of family care with features such as real time tracking, wevoice, voice monitoring, history playback, safezone, alarm notification etc. With this excellent application, you may stay accompanying with your beloved family all the time which bringing peace in mind and joy in soul!