The Bluetooth short-range communication protocol has been a boon to busy business folk who'd struggled for years to link laptops, phones, cameras and other devices with messy cables and a boxful of adapters. And it has been perfect for people with multiple cars, who can wirelessly link their personal mobile phone into each car and skip adding a dock or a cradle for hands-free operation.
But another - rather less desirable - group is also benefiting from the Bluetooth connection: thieves.
LingsCars, a car rental firm in northeastern England, is warning clients to always switch off Bluetooth devices when leaving them in the vehicle's trunk or cabin.
Enterprising criminals, it seems, are strolling through parking lots holding Bluetooth phones that pick up any Bluetooth signals emitted from the surrounding vehicles.
It's then a simple matter for the villain to home in on the signal, pry open the trunk or door and depart with a modern laptop, personal digital assistant or mobile.