Enjoy premium sonic performance with the copper Astell&Kern SP2000, an A&ultima Series high-resolution music player offering uncompromising audio fidelity for audiophiles and music lovers. Dual AKM AK4499EQ DAC chips and redesigned circuitry provide a wide, flat frequency response, a high signal-to-noise ratio, and independent channels for the balanced 2.5mm and unbalanced 3.5mm outputs. The 3.5mm port doubles as an optical output for easy hookup to an external DAC. The SP2000 supports uncompressed bit-to-bit audio transmission in PCM resolutions up to 32-bit / 768 kHz or DSD resolutions up to 22.4 MHz. Dual-band Wi-Fi support allows you to wirelessly stream music from a mobile device or computer. When it comes time to load music onto the SP2000, its 512GB internal memory and compatibility with large-capacity microSD cards (up to 512GB) ensure that you won't run out of storage space anytime soon. With an octa-core CPU, a high-definition 5" touchscreen, and a sleek multifunction wheel, the SP2000 is powerful, fast, and easy to control. Its internal battery delivers up to eight hours of continuous playback time and supports standard and fast charging via USB. The SP2000 includes a USB Type-C cable and a complementary brown leather case.