Carry on your back like a backpack

the settings are lost and must be reset to default

Because the typical OBD Auto Memory Saver does not have the protection against wrong polarity (AIP)

and the device can also get 12v power supply from cigarette lighter of another good car

Keyless RFID skydd bilnyckelfodral Volvo Carry on your back likeCar keys with keyless function transmit data wirelessly using RFID (Radio Frequency Identity). Even though the information is encrypted, there is a risk that unauthorized people can access it and relatively easily steal the car without breaking into the car or accessing the key. With a key case with RFID protection, you can easily circumvent this. Important: The key cover has two pockets and it is the back one that protects the key, so make sure to