Play audio files with speed control, pitch adjustment, and equalizer settings. Support remote control via compatible earphones. Adjust volume up to +20 dB. Cannot play iCloud or DRM-protected files.
Enhance audio volume for media and ringtones. Apply booster and 3D virtualizer effects. Use with preset settings. Amplify sound for headphones, Bluetooth, and speakers. Display visual sound spectrum. Maintain sound quality during volume boost.
A tuning with auto noise filtering. Select frequency and tuning settings. Display pitch for each string as high or low. Calibrate piano sound by clicking an open string. Adjust A4 frequency between 428 and 452.
