Dual CS43198 |4x OPA1622 headphone amps separate from DAC |4000mAh large battery |3.5mmPO+ 4.4mmBAL.PO |Up to 480mW output power |Line out | USB | S/PDIF | Bluetooth freeform signal I/O |X1600E SoC |3.3” HD touchscreen Dual CS43198 top-tier DAC chips: high resolution, low distortion, hifi audio. Dual-chip design boosts detail and soundstage for richer, purer sound. MP3 with 4 OPA1622 headphone amps. Dual-parallel design: high dynamics, fast transients, richer layering, fuller/powerful melodies. Dual low-phase-noise active crystals: cutting jitter, boosting audio accuracy, reducing phase noise’s sound impact. SoC upgraded to X1600E for faster UI response and stronger Bluetooth signal. This player holds dual certifications for Hi-Res Audio and Hi-Res Audio Wireless, making it a true high-definition audio player. Supports up to DSD256, PCM 384kHz/32bit playback, plus APE, WAV, WMA (Lossless/V2/V9), FLAC, DFF, ISO DSD, AIFF, OPUS, M4A, MP2, MP3, AAC, OGG, DTS. Core Advantages of MQA 8x Expansion: Unlocking the Full Potential of High-Resolution Audio and Restoring Studio-Grade "Native High-Res Details. This player has a 4000mAh large-capacity battery, offering over 21hrs continuous music playback and 900+ hrs standby time. MP3 Player with Bluetooth 5.1: Supports high-definition codecs (LDAC, aptX – output only) and is compatible with AAC, SBC protocols. The player has 3.5mm (single-ended) and 4.4mm (balanced) headphone jacks—flexible for all earphones, better clarity with balanced setups. Easy-access card slot for quick music library switching; up to 2TB storage expansion. *No built-in memory in the player itself. 3.3” IPS display (720x480 pixels): large screen coverage, high screen resolution, vibrant colors, accurate touch. HiBy (HiBy Music) is dedicated to the research, development, and sales of portable HIFI audio products. Adhering to the philosophy of "make control more smoother, make music more musical", we will continue to bring better products and consumer experiences to our customers. If you have any questions about HiBy products, please feel free to contact.