EXTRAORDINARY HIFI EXPERIENCE FROM EXCEPTIONAL DAC:Equipped with the CS43131 DAC Chip, For SAVITECH SA9312L high-performance main control chip,will bring you an extraordinary aggressive audio experience. Clean yet transparent. Excellent bass with fairly good sufficient depth, mid sounds full, and the smooth sparkly treble feels lively. SUPPORT DSD UP TO 256 & PCM 384kHz/32bits:AP20 DAC amplifier is capable of ultimate decoding up to 384kHz/32bits PCM audio file, native DSD256 in hardware and for ISO, which provide high fidelity sound quality and give you an excellent premium audio experience. The successful application of native DSD256, often used in high-end music players, make your mobile phone a HiFi music player via AP20. Carry your AP20 and experience how it works in your daily life. CONTAINS Triple INTERFACES AND MANY ACCESSORIES:2.5mm/3.5mm/4.4mm Output in such a small size. It is small size, but with greater power, detailed resolution, more functional and user friendly thanks to the both balanced and Single-ended outputs, can even powerfully drive all full-size headphones. QUALITY MATERIAL & ELABORATE PORTABLE DESIGN:AP20 manufactured by CNC integrated molding technology can be called works of art due to the difficulty and high time costs, showing the fine workmanship, stable structure and pleasing appearance which is incomparable to welded or split products. The AP20 headphones amplifier is mini and portable, CS43131 DAC Chip PCM: Up to 32bit 384kHz With Volume control knob design, aviation aluminum material Equipped with SAVITECH SA9312L high-performance main control chip Lightweight body Compatible with for Windows7/8/10/11/for Android/for Mac OS/for iOS/for iPad OS System Colour:As Shown Material:Metal Specification:B:Single Host Package Contents: 1 x Host Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.