Mazda key card / Mazda key shell
This is a Mazda keyless entry shell (also commonly called a Mazda key card or card-style key fob).
Key features visible:
Rectangular, slim black plastic body (card-like shape)
Three circular buttons on the left:
Lock
Unlock
Car icon (usually trunk release or panic/alarm depending on the exact model)
Large round central button (often used for panic, remote start, or trunk on certain Mazdas)
Textured grip and vent/slot details on the sides
Typical use
It functions as a wireless remote for locking/unlocking the doors, opening the trunk, and triggering the alarm on compatible Mazda vehicles. Some versions also support proximity keyless entry (the car detects the card when it’s nearby).
These were used on various Mazda models (especially in the 2000s–2010s) as an alternative to the more common flip-key style.