CES 2024: HIDIZS Announce world's first Hi-Fi Digital IEM Headphones the ST2 PRO; and SD2 Portable USB Type-C Adaptor DAC

ST2 PRO Digital IEMs feature USB-C connector for iPhone 15, PC, Portable Gaming Devices & more; Flagship ESS ES9281C DAC; Support for 32-Bit/384kHz PCM, DSD128, and MQA.

January 8, 2024

CES, Las Vegas, 8th January 2024: HIDIZS has today unveiled the world's first Hi-Fi Digital In-Ear Monitors (IEMs), the ST2 PRO; and Portable USB Type-C Adaptor DAC, the SD2.

The result of hundreds of hours of testing and engineering work by the company, the ST2 PRO Digital IEMs represent an innovative new way for consumers to listen to their audio from today's digital devices, including: smartphones, portable gaming devices, Digital Audio Players (DAPs) and more.

Rather than featuring a traditional mini-jack plug, the ST2 PRO is equipped with a USB Type-C connector. The IEMs feature a built-in flagship ESS ES9281C PRO DAC and offer support for audio files up to and including 32-Bit/384kHz (PCM), DSD128, and MQA. Users can easily plug the ST2 PRO Digital IEMs into their Mac, PC or smartphone — including the latest iPhone 15, 15 Pro, and 15 Pro Max — to enjoy their favourite albums, podcasts, and more. The digital wired connection ensures zero latency, making the ST2 PRO ideal for playing games, or watching video.

HIDIZS' audio engineers have worked hard to ensure that the ST2 PRO deliver a musical, engaging sound thanks to their 10mm Magnetic Circuit Dynamic Drivers, frequency response of 20Hz — 40kHz, and 6N High-purity Oxygen-free Copper Cable.

For review samples, please contact Starscream Communications.

SD2 USB Type-C to 3.5mm Adaptor Dongle DAC

Also announced at CES 2024, is the new HIDIZS SD2 USB Type-C to 3.5mm Adapter Dongle DAC. Continuing the company's record of delivering innovative, high-quality audio products at an affordable price.

Available in three colours - Black, Grey, and Silver - and weighing in at just 6g, the diminutive SD2 features a USB Type-C connector on one side, and a 3.5mm headphone output on the other. Simply plug the SD2 into your Mac, PC or smartphone — including the iPhone 15, 15 Pro, and 15 Pro Max — and your headphones into the SD2, to instantly improve the quality of your listening.

Featuring an ESS ES9270 DAC, support for audio files up to 32-Bit/384kHz (PCM) & DSD128, and a frequency response of 20Hz — 40kHz, the HIDIZS SD2 USB Type-C Adaptor Dongle DAC punches above its weight to improve the audio from your favourite devices.

The HIDIZS SD2 will be available from February.

For review samples, please contact Starscream Communications.

ST2 PRO SPECIFICATION:

Type	Digital In-Ear Monitors (IEMs)
Drivers	10mm Magnetic Circuit Dynamic Driver
DAC	Flagship ESS ES9281C PRO
Audio Support	Up to 32-Bit/384kHz (PCM) Up to DSD128
MQA Support	Yes
Frequency Response	20Hz — 40kHz
Output Power	70mW+70mW@32Ω
THD+N	0.0012%
SNR	118dB
Crosstalk	≥63dB@32Ω
Sample-rate Indicator Light	Yes
Connector	USB Type-C
Support for In-line Control / HD Mic	Yes
IEM Construction	Transparent Resin and Aluminum Alloy
Cable Construction	6N High-purity Oxygen-free Copper Transmission Cable, using 4 Strands of Mixed Wire with a total of 260 Cores.
Cable Length	1.2M
Detachable Cable	Yes (0.78mm Standard 2-Pin Connection)
Weight	11g (Without Cable)
Hi-Res Audio Certification	Yes

SD2 SPECIFICATION:

Product Type	USB Type-C to 3.5mm Adapter Dongle DAC
DAC	ESS ES9270
Audio Support	Up to 32-Bit/384kHz (PCM) Up to DSD128
Frequency Response	20Hz — 40kHz
Output Power	70mW+70mW@32Ω
THD+N	0.0015%
SNR	118dB
Crosstalk	≥64dB@32Ω
Hi-Res Audio Certified	Yes
Input	USB Type-C
Output	3.5mm Single-ended
Supports iPhone 15 USB Type-C Port	Yes
Support for In-line Control / HD Mic	Yes
Sample-rate Indicator Light	Yes
Available Colours	Black, Grey, Silver
Dimensions	34.5ｘ20ｘ10ｍｍ
Weight	6g