【Experience High-performance Audio】：Building on the success of the CD-20, the CD-2 mini adapter was designed with the same dedication to high-fidelity sound but in a more compact and portable form. Both the CD-20 and CD-2 mini paoable Amp excel in portability, but the CD-2 takes it a step further with its sleek, all-aluminum alloy body. It has two styles: green and gun gray.This refined design not only adds to its durability but also gives it a premium, minimalist aesthetic, perfect for those who want high-fidelity sound in a compact, stylish form 【Dual Operational Amplifiers】：Celest CD-2 has the US Maxim MAX97220 power amp chip. With CX31993 DAC chip decoding & pre-amp output plus MAX97220's post-amp output,it provides a powerful driving force for your headphones, effortlessly driving high-impedance headphones and other audio devices. This ensures precise, distortion-free sound even in demanding environments, delivering an upgraded listening experience for all 【High-Resolution Audio Performance】: The CD-2 portable dac supports PCM up to 32bit/384kHz and DSD up to DSD128, delivering music with exceptional detail and clarity.The precise audio decoding creates a broad and immersive soundstage, reproducing all layers of sound with exceptional accuracy. Enjoy studio-quality sound wherever you go, all within a sleek and portable design 【Flexible Output Options】：Celest CD-2 features dual output options: a 3.5mm single-ended and a 4.4mm balanced output.The 3.5mm single-ended output features in wide compatibility, high durability, and easy connection. The inclusion of a 4.4mm balanced output ensures stable signal transmission, reduces noise interference, and delivers pure, high-resolution sound. This feature enhances soundstage and clarity, making it ideal for discerning listeners 【Superior Audio Clarity】: SNR: 124dB&Frequency Response: 20Hz ~ 40kHz. With its wide frequency response and excellent signal-to-noise ratio, the CD-2 delivers clean, detailed, and uncolored audio for a truly immersive listening experience. Equipped with a USB Type-C interface, compatible with multiple systems, supporting Windows, Mac OS, Android, and iOS Note： When you insert headphones with a microphone into the CD-2 adapter, the microphone on the headphones will be temporarily unavailable, which is a normal state of incompatibility. However, CD-2 is compatible with the original microphone on devices such as mobile phones and computers Product Information Brand: Celest Model: CD-2 Colors: Gunmetal Gray / Army Green Weight: 21g Headphone Interfaces: 3.5mm + 4.4mm SNR: 124dB Dynamic Range: 111dB Distortion: -95dB Frequency Response: 20Hz ~ 40kHz Output Power: 140mw @ 16Ω, 60mw @ 32Ω (The above data are sourced from the typical values of the Conexant CX31993 chip solution, and there may be deviations in actual use.)