The product is a pack of six Energizer 1632 coin lithium batteries with an expiration date of 03/2033. These button cell batteries have a voltage of 3V and belong to the CR1632 type. They are designed for use in various consumer electronics and single-use battery-powered devices. The chemical composition of these batteries is lithium-based, and they come with a California Prop 65 warning for potential cancer and reproductive harm.