If you depend on electronics to get you through the day, it's essential that you power them up with a reliable battery. When you use an Energizer battery, you can be sure that you're using a battery that provides the right amount of power over a long period of time. With two batteries included in this package, you'll get the power you need for your everyday electronics. The Energizer CR2025 Watch/Calculator Battery is specifically designed for everyday use in electronics, such as watches, calculators, keyless entry devices, handheld devices, home medical devices and more. Featuring a lightweight construction, this battery works great in electronics you use on the go. These high-quality batteries produce 3V of power, ensuring your components will work when you need them most.

Fitbit Zip Wireless Activity Tracker: Use your computer or Bluetooth 4.0-enabled mobile phone or tablet to monitor your workout progress with this activity tracker that wirelessly syncs with your device and tracks steps taken, distance traveled and calories burned.