⚫︎Unused DAC Chip for Hi-Fi Sound Quality: The UGREEN USB C to Headphone Adapter, with a built-in Digital Audio Converter (DAC) high-resolution chipset, provides a sampling rate of up to 384KHz/32 bit, enhancing the original sound quality of your mobile phone. Hi-Res Design: The high-fidelity design ensures a stable audio signal and lossless transmission. With the DAC chip and PCM/DSD decoding technology, it delivers clear high frequencies, soft mid-frequencies, and pure low frequencies, allowing you to enjoy an unparalleled musical feast anytime. Multi-function Dongle with Inline Control: You can connect your earphones, answer calls, and listen to good music all day long. Besides that, this digital material is believed to improve audio quality. It effectively filters circuits and eliminates noise that may be picked up when answering calls or listening to music. More Durable Design: With a design that reduces distortion, this USB Type C to 3.5mm headphone jack adapter can withstand over 15,000 bending tests. The 3.5mm audio cable adopts an alloy shell and nylon braided material, so you don't have to worry about scratches or breaks. This product is unused. Please purchase only if you understand this.