The Varta Electronics Alkaline Battery A27 12V 1pc is a genuine 12V alkaline battery, suitable for use in electronic devices that require a small but powerful voltage, such as car remote controls, security devices, heart rate monitors, and other small devices that require 12V batteries. Despite its small size, it offers long life and stable performance. The package includes 1 battery and is an ideal choice for devices that require small, powerful alkaline batteries for reliable operation.