The product is a pack of 2 Energizer CR1632 3V lithium coin cell batteries with the longest expiry date, making them ideal for high drain devices. These batteries are manufactured by Energizer and have a lithium-based chemical composition, providing reliable power for various applications in the Sound & Vision category. With a voltage of 3V, these coin/button cell batteries are a convenient and long-lasting power source for electronic devices requiring a steady supply of energy.