Features: Highly Resolution auditory Decoding: Features double CS43198 chips supporting up to 32bit/384kHz PCM form for premium sound quality with low distortions output. Superior Dynamic Ranges: Delivers exceptionally noise ratio and wide dynamic ranges, revealing subtle musical detailings for an immersive listening experience. Multiple Connection Option: Equipped with USB, opt and coaxial inputs for versatile compatibility with various auditory devices including smartphones and computers. Compactly yet durability metal construction ensures easy portability for use while maintaining excellent heat dissipation performances. Intelligent auditory Control: Features precise digital volumes adjustment and customizable EQ setting for personalizing sound optimization with user friendly LED indicators. Specifications: Type：double CS43198 chips auditory Decoding Board Size about 15cm/5.91in Component：Metal Supporting up to 32bit/384kHz PCM form Package Includes: Decoding headphone amplifier note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution