General Specifications
Name/Model DT11 Hardware solution SoC: Qualcomm Snapdragon 680; FPGA: EF2L45UG132B*1;
Crystal oscillator: RIVER femtosecond crystal oscillators
Working mode Android mode/Pure Music mode/AirPlay mode/USB DAC mode/Bluetooth Receiving mode
Color Black/Silver Weight About 192g
Dimensions About 68.7x121x17.7mm Volume control Button control
Display 4.7-inch fully laminated screen (750×1334) Internal storage/user available storage (ROM) 64GB/About 52GB
Memory (RAM) 4GB Memory card Supports up to 2TB single microSD card storage
Buttons and Ports
Buttons Power button*1, Volume button*2, Play/Pause button*1, Previous track*1, Next track*1 USB Type-C USB3.0*1 (charging/data transfer) + Type-C POWER IN*1 (charging/dedicated power supply port)
Slide switch HOLD switch*1 Optical output Standard 3.5mm port (shared with coaxial port)
Coaxial output Standard 3.5mm port*2    
Special Functions
WiFi 2.4GHz/5GHz, supports AirPlay, WiFi music transfer, Roon Ready, etc. Bluetooth transmission (5.0) SBC/aptX/aptX HD/LDAC/LHDC
Bluetooth reception (5.0) SBC/LDAC FIIO Link Android: WiFi and Bluetooth control; iOS: Bluetooth control
MQA Supports full decoding ALL TO DSD Supported
EQ adjustment Supports 10-band PEQ + AUTO EQ Navigation Control Supports gesture control, two-button navigation, and three-button navigation.
Sampling rate support USB DAC: Up to 384kHz/32bit; DSD256 (Native) Double click to wake up Supported
USB Audio: 768kHz/32bit; DSD512 (Supports DoP/D2P/Native) Magnetic back ring Supports magnetic attachment
Native decoding: Up to 384kHz/32bit; DSD256 (Native) Power-off timers Supports idle poweroff/sleep
Optical output: Up to 192kHz/24bit Firmware upgrade Supports local storage upgrade + microSD card local upgrade + OTA push upgrade
Coaxial output: Up to 384kHz/24bit; DSD128 (DOP/D2P)    
Power Supply Parameters
Power supply Supports PD2.0 and PD3.0 fast charging Charging time About 2 hours (PD3.0 fast charging)
Battery life and test conditions:
Optical output: 24h
Audio input Local playback Playback track and format MP3 44kHz/16bit
Display status OFF EQ OFF
Coaxial output: 24h
Audio input Local playback Playback track and format MP3 44kHz/16bit
Display status OFF EQ OFF
USB output + QX11 3.5mm single-ended output: 12h
DT11 audio input Local playback DT11 playback track and format MP3 44kHz/16bit
DT11 volume 100 DT11 display status OFF
DT11 EQ OFF DT11 USB high-performance output mode ON
QX11 display status OFF QX11 volume 49
QX11 EQ OFF QX11 desktop mode ON
QX11 load 32Ω    
USB output + QX11 4.4mm balanced output: 11h
DT11 audio input Local playback DT11 playback track and format MP3 44kHz/16bit
DT11 volume 100 DT11 display status OFF
DT11 EQ OFF DT11 USB high-performance output mode ON
QX11 display status OFF QX11 volume 40
QX11 EQ OFF QX11 desktop mode ON
QX11 load 32Ω    
Audio format supported
Lossless: DSD: DSD64/128/256 (".iso", ".dsf", ".dff"), DST iSO
DXD: 352.8kHz/24bit
APE FAST/High/Normal: 384kHz/24bit (MAX)
APE Extra High: 192kHz/24bit (MAX)
APE Insane: 96kHz/24bit (MAX)
Apple Lossless: 384kHz/32bit (MAX)
AIFF: 384kHz/32bit (MAX)
FLAC: 384kHz/32bit (MAX)
WAV: 384kHz/32bit (MAX)
WMA LOSSLESS: 96kHz/24bit (MAX)
Lossy compression: MP3, OGG, WMA, etc.