Feature(may vary by option.)

●[Dual DAC Dual Crystal Portable USB DAC] Equipped with 2 of ES9219 DAC chips and Independent FPGA-based dual independent crystal oscillator reclocking, A solid foundation for good sound quality. Supporting up to PCM768kHz/32bit, DSD256 (native) decoding, edging on professional HiFi player in decoding specifications
●[Professional audio architecture] The FC4 headphone amp dac contains the same level of circuitry as a professional full-size HiBy digital audio player, which is designed solely for high definition lossless music, playing back every detail of the original music.
●[High driving power usb dac dongle] 340mW+340mW @32Ω for a USB dongle, Easily drive all your HiFi earphones and even some full-size headphones. It will let your earphones handle all music styles with more aplomb than ever, a higher sense of energy without sacrificing any fine control or detail.
●[MQA 16X unfolding] The HiBy FC4 MQA dongle includes MQA full decoding technology, which enables you to play back MQA audio files and streams by a factor of 16x.*The smartphone must be using apps supporting bitperfect and MQA (e.g. HiByMusic, TIDAL), in order for MQA unfolding to occur with the HiBy FC4 connected via USB.
●[Plug and Play] No charging required, effective way to improve Sound quality. Driver-free for Android / iOS / Mac / Windows 10 and up, plug-and-play, For versions below Windows 10, need to download the driver.(For iOS system devices need to purchase Lightning to Type-C OTG cable)

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Description

FC4 Portable DAC Headphone Amplifier

Hi Res Audio sound quality/Dual ES9219 DAC/Dual Crystal Portable/Professional audio architecture/340mW+340mW @32Ω Output power/PCM768kHz/DSD256native/MQA 16X/HQ USB audio access mode/plug-and-play/no charging required/30 step volume control/RGB indicator light/Can be used as a computer sound card/4.4mm and 3.5mm Headphones jack

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FC4 Headphone Amplifier with Professional Audio Architecture for Hi Res Audio Lossless Music
Dual DAC chips with independent outputs to each channel
FPGA-based dual crystal oscillator for effectively lower jitter
High-efficiency USB receiver reduces smartphone battery consumption.

1 Pro audio architecture 2 Dual ES9219 DAC 3 Dual crystal oscillator 4 USB receiver

MQA dongle

The HiBy FC4 supports MQA full decoding of 16x unfolding, delivering the sound of the original master recording.

High SNR Low noise & THD

High Output power High SNR low absolute noise level and low THD all at the forefront of products of this class.

Hi Res Audio certified

Supporting up to PCM768kHz/32bit, DSD256 (native) decoding, edging on professional HiFi in decoding specifications.

Software integration

The HiByMusic app with an external USB DAC headphone amplifier to provide better sound quality on smartphones.

3.5mm SE and 4.4mm BAL

Includes 3.5mm SE and 4.4mm balanced ports--balanced in position too! The attention to detail inspires confidence.

Hardware volume buttons

30-step physical hardware volume button controlling hardware volume controller for best adaptability and lossless volume control.

RGB indicator light

Displaying different colours depending on what is being played.

All-platform support

Supports use on Android / iOS / Mac / Windows as USB dongle / computer external soundcard. No charging required, driver-free plug-and-play.

Why use a USB dongle?

Recover a headphone port for your modern smartphone, giving voice to the large online library of lossless music available,hearing more musical details.

Professional audio architecture

Containing circuitry on a level with professional full-scale HiBy Digital Audio Players, which is designed solely for high-res lossless music, replaying the original music in every detail, including all its energy and presence.

High performance by the numbers

340mW (32Ω)Output Power, 0.0006% (32Ω)THD+N, 1.7μVrms (32Ω)Noise

Whats in the box

FC4 DAC headphone amp, USB to Type C interconnect, Type-C to Type-C interconnect ,User manual