The simple interface allows you to check product status and EQ settings, make software updates, and view button operations.Main Features:- Check product status- Select EQ settings- Noise control settings- Select maximum sound level settings- Change color of the status lamp while charging- Update software (firmware)* Some features may not be available for all products.Disclaimer:* The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by NTT sonority is under license.* Other systems, products, and service names appearing in the app are registered trademarks or trademarks of their respective developers. Trademarks (TM) are explicitly omitted in this text.