Some tracking devices are large, easy to detect or easy to remove, so it can be difficult to recover stolen vehicles and machinery. But this new device is tiny, the size of a matchbox, and it uses SIM card technology instead of GPS, eliminating the need for line-of-sight to the sky in order to signal its location. It also uses a stealth mode with a self-contained power source and internal aerials, only waking up to signal its position at a pre-set period. The size and unique features of the recover-e allow you to protect equipment that you haven’t been able to before, at a 95-percent success rate during limited testing for the last 10 years in 150 countries. Plus, with the sleep mode activated, the internal battery lasts up to four years before it needs changing.