The product is a pack of five CR2032 lithium 3V button coin batteries, suitable for a variety of electronic devices. These batteries have a voltage of 3V and an ampere-hour rating of 0.28 Ah, making them ideal for uses such as powering small gadgets or devices. The batteries come in a 1 x 5 blister pack and have a manufacturer warranty of none. Made in China, they have an expiry date of 5 years, providing reliable power for your devices.