Bluetooth Battery is an Android utility application developed by Polaris Office Corp. It is a free app that allows you to check the battery level of your connected Bluetooth devices. You can also change the pairing device and automatically start a specific application for each set Bluetooth device.

The app supports AirPods, and it provides a checklist of connected Bluetooth devices with their battery levels. You can set a device nickname and notification settings for battery levels, and you can also configure the app to check the battery levels automatically and launch the app automatically when a Bluetooth device is connected.

The app is easy to use, and it provides all the necessary information about your Bluetooth devices' battery levels. It is a useful app for anyone who uses Bluetooth devices frequently and wants to keep track of their battery levels.