The item contains — 1 Type C to 3.5mm Female audio cable(10cm), 1 USB A to Type C adaptor, 1 iron storage box. Quality material — 4 strands of single crystal copper and 4 sterling silver hybrid cables. USB A/Type C Input and 3.5mm AUX Output — USB A/Type C Input and 3.5mm AUX Output, SNR>125Db, DNR>100Db and THD+N 0.0003%, Make it Possibility to Output not just Louder Sound, but a Sharper and More Real Stereo Sound without Distortion.?Support 600 ohm headset?. Smartphone, Tablet, Mac & PC Compatible: USB-C input to a 3.5mm Female Headphone Output supporting playback of PCM files with sampling rates up to 384 kHz, or DSD files with sampling frequencies up to 5.6MHz.. The 3.5mm audio jack seamlessly connects to your wired headphones or speaker system.?Note: A USB A to TYPE C adapter is included.?. DAC Chip — The Internal DAC chip is a Realtek Alc5686 and can handle PCM files up to 32 bit/384 kHz.