1. Compatible with most music formats and U disk file system in the market: M4A APE, FLAC, WAV, MP3, WMA, AIFF, AAC, , , , CUE, even multichannel DTS5.1, etc. Support multi-partition, file system NTFS,EXFAT,FAT32, hard disk USB disk no capacity limit, Parse CUE and in seconds. PCM up to 384k 32bit. DSD hard solution up to DSD128. Support USB flash drive Common file systems such as NTFS,EXFAT,FAT32, support multiple partitions. 2. Adopt self-developed Bluetooth module. Support domestic, adopt the ESP32 Bluetooth module developed by Zishan, Bluetooth version 4.2, and support , , -HD, LDAC protocol, LDAC protocol up to 96k 24b. 3. Supports the USB DAC function. Support UAC2.0 protocol, connected to the computer win10, win11 system without driver, can achieve the highest PCM 348K 32b, DSD128 playback. 4. NO PLL and ALL Signal comes from CPLD. Zishan adhere to the dual crystal oscillator +CPLD I2S solution. All the signals come from CPLD without PLL, and the audio crystal is divided by CPLD until DAC. The CPLD takes over the I2S of the master control and Bluetooth and synthesizes the SPDIF signal output in real time. 5. Single ES9038Q2M. A single ES9038K2M configuration includes an ES9038Q2M chip. Although it is a single DAC chip, its abnormal indicators and the price of over 300 are very high. At the same time to provide a plug - in op - amp socket for to replace their favorite op - amp. MD3 is a hand-sized HIFI digital turntable, which can be inserted into U disk, can be Bluetooth, can be decoded by USB DAC, with coaxial, optical fiber digital signal output, more with RCA output, 3.5 headphone port output. The simplest DAC design. Thanks to the dual power supply design, the whole machine does not have a coupling capacitor, and the DAC is connected with the necessary straight out, providing the standard 2Vrms level. Physical relays suppress switching machine bursts without any audio switching switches or mute tubes. Multiple incense burner multiple ghosts, believe that the simplest design can play most DAC level. Coaxial support. In short, it means that DSD signal is transmitted through the coaxial line. But at the same time, the decoder needs to support function. If you have a decoder DAC that supports such as ES9038 or , you can realize real DSD signal transmission and playback when you use coaxial fiber to connect MD1 to play DSD music. Type:JRC2068 Colour:As Shown Material:Plastic+Metal Package Contents: 1 * HIFI DSD Lossless playback decoder 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.