Bluetooth Battery Monitor is a widget-only application that provides you with an estimated battery level of your Bluetooth headset (or another device) and calculates how much time is left of its battery life. To calculate these values, widget monitors your Bluetooth device activity and uses Active time and Standby time that you should enter on the configuration screen.
Bluetooth Battery Monitor Pro is totally safe for downloading. DroidSFT is the official developer of this application which can be found in the Tools category. The most recent update of Bluetooth Battery Monitor Pro was launched on May 26, 2017 and the app was downloaded by over 1K users.
Users rated this application 2.9 on Google Play. It's free of charge to get the installation package of Bluetooth Battery Monitor Pro, also, you can have a look at users' reviews on Droid Informer. The app works fine on Android 4.0 and higher.