Feature(may vary by option.)

●The latest Q4 Bluetooth receiver & D/A converter: with Bluetooth / PC-USB / U-disk / Optical and Coaxial S/PDIF inputs can match perfectly with most home audio system; transmits stream bit-perfect 24Bit/192KHz HD low jitter signal, with output protect circuit, safe for your expensive audio system.
●PC-USB / U-disk inputs and dual analog outputs: besides PC-USB (support phone OTG), also with U-disk input to play lossless audio format, easy to set-up, no need for any driver or software, truly plug-and-play. RCA output can be connected to amplifier or powered speakers, and headphone amp circuit is added to drive most 16-300Ω headphones.
●HiFi clear sound with tone control: adopts high-end chip combination to get high-quality sound with higher S/N ratio and lower distortion (0.005%). Also with treble and bass knobs, can be used as preamp to adjust ones own preferable sound styles, presents HiFi music with rousing highs and deep lows.
●Practical funtions to simplify use: with full-function remote control, all settings can be achieved from the distance; with coding input selection button and independent input indicators, clearly to show the working status in real time; aluminum alloy case with unique mirror design looks very cool, both provide HiFi music and decorate your desktop audio space.
●Warm tips: 1. U-disk input is prior to Bluetooth input, if you want Bluetooth input please make sure the U-disk is plugged out. 2. Bluetooh of Q4 can only be searched and connected when input channel is switched to Bluetooth input mode. 3. PC-USB input also supports mobile phones that with OTG functions, but Android system needs OTG cable and IOS system needs camera kit, please prepare by yourself.

[Q3]

[Q4]

Description

Parameters

Audio input: Bluetooth 5.0/USB/Coaxial/Fiber Optical
Audio output: stereo L/R RCA / 3.5mm headphone jack
Input sampling rate supported:
PC-USB: 96K/24Bit
Fiber/Coaxial: 192K/24Bit
U-disk supported formats: MP3/WMA/APE/WAV/FLAC
U-disk max capacity: 64G
Treble & bass range: ±6dB
Frequency response: 20Hz-20KHz (±0.5dB)
PC-USB support operating system: XP/W7/W8/W10/MAC/linux
Distortion: 0.0057%
SNR: ≥ 113dB
Amp output max power: 110mW @32Ω
Headphone matched impedance: 16-300Ω
RCA output level: 1.9V
Working voltage: DC 5V (type-C)
Dimensions(W*D*H): 95*78*32mm / 3.74*3.07*1.26in
Net weight: 235g / 0.52lb
Package weight: 500g / 1.10lb

Packing List

1 × Q4 DAC
1 × Remote Control (without 2*AAA batteries)
1 × USB Power Cable
1 × USB Data Cable
1 × Bluetooth Antenna
1 × User Manual