True full balanced output 
Independent differential amplifier circuit for each channel, true balanced output design 2.5mm bal drive, fully symmetrical architecture (wiring adopts up and down and left and right stereo symmetry) to reduce distortion, improve left and right channel isolation, and avoid single-segment interface ground interference. 

New mango 
The new generation of Mango OS pure sound system, derived from Linux, highly tailored, deep optimization, fast and pure implementation of the entire UI, interface rendering, all moved to the GPU, based on OpenGL real-time rendering touch response and UI rendering fast. Using DMA hardware to process background I/O tasks, liberating the processor, making the audio decoding highly isolated, the CPU is no longer interfered, greatly improving the real-time performance of the entire audio channel, making the sound layering stronger, clean and thorough, refreshing . 

Type-C+QC2.0 double fast charging technology 
DX120 also has QC2.0 and MTK-PE+ dual fast charging technology, supports 12V, 9V/1.5A fast charging standard, and is compatible with traditional 5V/2A charger. After the system is fully optimized, it is more energy efficient and has a battery life of more than 16h. 

Specification 
OS: mango pure tone system 
DAC: AK4495 
Screen: 3.2-inch 480X800 resolution full-fit IPS touch screen 
Sampling rate: PCM: 8kHz-384kHz (8/16/24/32bits)/native DSD: DSD64/128, stereo (does not support multi-channel DST) 
Clock system: TCXO active temperature compensation crystal oscillator + phase-locked loop technology, digital audio bus full synchronous clock Battery/Charging: 3700mAh 3.8V Lithium Ion Polymer Battery/USB TYPE-C MTK-PE+ is compatible with QC2.0 dual fast charging technology, supports 12V, 9V/1.5A fast charging standard, and is backward compatible with common BC1.2 specification. USB charger 
2 Micro SD card slots: 2TB each slots 
Size: 63mmx113mmx15mm 
Weight:165g