The product is a pack of two 9V heavy-duty block batteries from the brand Excelltec. These zinc-carbon batteries have a voltage of 9V and are designed to be used in various applications such as smoke alarms. With a long-lasting power supply, these batteries are reliable and efficient for keeping your devices powered up for an extended period of time. Ideal for use in emergency situations or for everyday power needs, these batteries offer a convenient solution for maintaining your devices' functionality.
