Cellphones are more than just convenient, one helped Peoria police locate two suspected carjackers in 17 minutes.

Alexis Rojas, 27, and Jaime Jasso Jr., 33, are suspected of stealing a 23-year-old woman's car around 2 a.m. Thursday in a condominium parking lot near the 10100 block of North 89th Avenue, police spokesman Jay Davies said.

One of the men held a knife to the woman's throat and demanded her car, Davies said.

The woman was uninjured but the men drove off in her car.

Police used GPS tracking to locate the woman's cellphone, which was still in the car. Seventeen minutes later, officers found Rojas, Jasso and the stolen vehicle in Glendale, Davies said.

The woman had an Android Smartphone with an application called "Lookout." The application provides security functions, including tools to help locate a lost or stolen phone.

Both men were arrested on suspicion of armed robbery.