- High-precision equalizer (16,384 discrete bands, linear-phase FIR filter)
- Selectable HD equalizer mode (64-bit)
- Automatic upsampling function
- Crossfade playback option
- Album artwork and song lyric display
- Repeat function (songs within a list)
- Resume Playback Function
- Shuffle function (within a list)
- Selectable equalizer presets optimized by musicians for Onkyo headphones
- Easily add songs to playlists and Up Next list
- Real-time DSD conversion function (supported on paid version, compatible with 64-bit CPU devices such as iPhone 5s and iPhone 6 only)
- Subscription music service AWA
- Supported Formats: MP3/ALAC/AAC/WAV/AIFF (up to 48 kHz) for free version (iPod Library), and above formats plus DSF/DSD-IFF [DSD(2.8 MHz) / Double-rate DSD(5.6 MHz) / Quad-rate DSD(11.2 MHz), DoP / PCM conversion], FLAC/ALAC/WAV/AIFF (up to 384kHz), Ogg-Vorbis (up to 192 kHz) for paid version (HD Library and iPod Library)
- Languages: English, French, German, Japanese, Simplified Chinese, Traditional Chinese
- Requirements: Recommended for iPhone 4s or later, iPod touch (5th generation or later), iPad 2 or later, and iPad mini. Requires iOS13.0 or later.