The Duracell CR2032 3V 225mAh Pack of 8 Lithium Coin Batteries (2035) are high-quality single use batteries suitable for a variety of electronic devices in the Sound & Vision category. With a reliable brand like Duracell, these lithium coin batteries offer a long-lasting power supply of 3 volts and 225mAh of amp hours, making them ideal for use in small devices such as watches, fitness trackers, and other portable electronics. The pack of 8 ensures that you have a sufficient quantity on hand for your multiple devices.