The product is a pack of 6 Duracell 377/376 SR66 SR626W 1.5V Silver Oxide Button Cell Batteries. These batteries are designed for low drain devices and have a voltage of 1.5V, making them suitable for a wide range of consumer electronics. Manufactured in Switzerland, these silver oxide batteries are reliable and long-lasting, providing consistent power for your devices. With the convenience of being single-use, these batteries are a practical and efficient choice for your everyday needs.