Builtin five EQ types with options: you can choose from five EQ presets and the host computer can the EQ to tailor the sound to your content or environment. This helps you achieve clear highs, balanced mids, and solid bass according to your preference. Virtual sound processing with on/off control: enables precise tone shaping by allowing the host computer to modify frequency and gain. This supports ondemand adjustments to match different playback scenarios or media types. USB drive decoding formats: MP3, WAV, WMA, AAC, APE, FLAC. Provides convenient standalone playback from a USB drive without requiring additional equipment, while supporting a range of common file formats for flexible usage. 3D sound effects with adjustable intensity: on/off option with intensity control via the host computer. Adds depth and spatial separation to audio to enhance immersion when needed, or can be muted for a cleaner sound. Use scenarios Home entertainment and listening: enable a chosen EQ preset or via the host computer to suit music, movies, or games; use 3D effects for immersive listening when preferred; play audio directly from a USB drive for added flexibility. DJing, live events, or presentation playback: load tracks on a USB drive for onsite playback; adjust frequency, gain, and EQ on the fly via the host computer to adapt to venue acoustics; enable 3D sound to enhance audience engagement during performances or presentations. Studio reference and critical listening: configure EQ and 3D intensity to accurately compare mixes or reference tracks; use USB playback to review stored material with consistent decoding formats.