The product is a pack of Duracell MN1604TB8 9 Volt Alkaline Batteries, totaling 8 batteries. Known for being a trusted brand, Duracell provides reliable power for various consumer electronics. These sealed batteries have a 9 V voltage and are designed for single use, making them suitable for a range of devices that require 9V power sources. The alkaline chemical composition ensures long-lasting energy storage, ideal for everyday use in electronic devices.