fiil+ is an Android application developed by Fengfan Beijing Technology Co. Ltd. It falls under the Utilities & Tools category and is available for free. The app allows you to modify the configuration and settings of your fiil headset without any hassle.

The program offers a range of features, including the ability to find out the latest features for your headset, instructive manuals for all models, and genuine product verification. Additionally, you can burn-in your headset using the app, ensuring that it stays in top condition.

The app's interface is well-designed and user-friendly, making it easy to navigate and use. Overall, fiil+ is an excellent tool for fiil headset users who want to customize and optimize their audio experience.