Features: Using high-performance 32Bit mobile professional audio DAC decoder chip ES9038Q2M which has a large dynamic range and low distortion. Built-in asynchronous frequency up function to eliminate clock jitter of digital reception. Using the second generation XMOS scheme XU208, sampling rate can support PCM 32Bit/768kHz, DSD512, original customized German Thesycon driver. BT 5.0 chip CSR8675, fast, stable and high transmission efficiency, low energy consumption, low delay, long-distance wireless output, fast connection speed, intelligent, support APTX/APTX-HD /APTX-LL/LDAC. It has independent stability, extremely low distortion, extremely high bandwidth and conversion rate of professional audio application, and can perfectly drive 32 Ω-600 Ω headphone. HiFi sound quality, give you a natural listening experience. Working stably, practical tool for your family. Made of aluminum alloy, it is tough and durable. Compact, space-saving, easy to carry.