The Questyle collection seamlessly integrates cutting-edge audio technology with exquisite craftsmanship, delivering exceptional hi-fi experiences for music enthusiasts. The flagship portable DAC/amp features proprietary Current Mode Amplification paired with ESS flagship DAC chips, supporting ultra-high-resolution decoding up to PCM768/DSD512 with 0.0003% ultra-low distortion. Its aerospace-grade aluminum chassis and Corning glass design blend aesthetics with durability. The 4300mAh battery enables 10-hour playback, while cross-compatibility with smartphones, PCs, and pro-audio gear makes it ideal for mobile hi-fi and recording production.