The Cr1220 Coin Battery is a small, yet powerful battery that provides a reliable power source for a variety of devices. With a voltage of 3v and a 2pin connector, this battery is easy to install and use. Its compact size makes it ideal for use in watches, calculators, and other small electronic devices. It has a long lifespan and is built to last, ensuring that your devices stay powered for longer. If you need a reliable and efficient power source for your small electronic devices, the Cr1220 Coin Battery is the perfect choice.