The product is a pack of two Varta Industrial Pro CR123A Lithium 3V batteries. These batteries are ideal for both high and low drain devices, making them versatile for various applications. With a voltage of 3V and a lithium chemical composition, these batteries provide reliable and long-lasting power for a range of uses in the Sound & Vision industry. The CR123 battery size ensures compatibility with a wide range of devices, making it a practical choice for everyday use.k2