R-35 Cube GPS surveillance system is a customized real time tracking solution specially designed for covert tracking. Based on the features of R-35, we have developed an ideal solution to intensify the strength of police force and law enforcement. The unit's special design brings the advantage of its capability to have built in 5500mA or 11000mA battery for extending its tracking duration. Featuring waterproof box with magnets, it's removable and can be attached to the bottom of the vehicles or assets without installation. To adapt itself to rigorous environments, R-35 Cube has one power switch and waterproof charging connector. This innovative solution applies to tracking valuable goods, cargo, and expensive equipment.