The Perfect Marriage of Smartphone and Headphone

ProStereo™ D1 Professional Wireless Hi-Fi Headphone Amp + DAC works with any smartphone or computer. Smartphones and computers on their own do not always produce smooth sound - in fact, it's often noticeably bad! Upgrade your music to studio quality!

Here's the truth:

Audio CDs use a bit depth of 16-bits, while DVD-Video and Blu-ray discs can use 24-bit audio.

ProStereo™ D1 has Hi-res audio certification from JAS with an audio output of up to 32-bit / 384 kHz.

A Total Solution of Hi-Fi Audio Experience

To deliver the best quality of music enjoyment, ProStereo™ D1 bundled with a pair of High-Res Audio Headphones with 5Hz - 70 kHz high-frequency range produces smooth bass sounds.

How It Works

ProStereo™ D1 supports the Sample Rate Converter, no matter which type of music file is playing on your mobile phone, or in USB DAC Mode (MP3, AAC, FLAC, etc.), the audio data can be raised up to 32-bit / 384 kHz and is processed by an independent Hi-Fi DAC.

Extraordinary USB DAC With High-Resolution Audio

ProStereo™ D1 can be used as a professional external USB DAC by connecting the USB cable to your devices and external accessories (phone, mp3 player, or computer).

High-Resolution Audio Earphones Included

The ProStereo™ D1 comes with earphones that are fully compliant with the Hi-Res Audio requirements set by the Japan Audio Society. You will notice a clear and fine sound output in wide treble performance and a solid, deep bass due to a frequency rate up to 70 kHz. There is also a 9mm dynamic driver to allow for a sense of natural sound clarity.

ADDITIONAL FEATURES

• Rotatable volume knob with LED light guide.
• Using the world-class AKM DAC and headphone amplifier chip.
• Extraordinary Bluetooth with sampling rate converter and high-end headphone amplifier.
• Upgraded USB DAC with high-resolution audio specifications.
• Allow effortless playing of music when connected with Bluetooth-enabled devices.
• Triangular prism design with a circular charging dock.
• Outstanding craftsmanship with a strong bottom to stand on different surfaces.
• Metallic and minimalistic appearance with a cool touch.

• Bluetooth version: 4.1
• Profile Support: A2DP, AVRCP, HSP, HFP
• Codec: SBC, AAC,PCM
• Support USB DAC
• Maximum Power Output: 40mW+40mW (16Ω)
• Maximum Power voltage: (RMS):0.9V
• Signal-to-Noise Ratio: 110dB
• Crosstalk: 80dB
• THD (A-Weighted): less than 0.02%
• Play time: Up to 6.5 hours
• Music time: SRC On: 5 hours; SRC Off: 6 hours
• Standby time: 100 hours
• USB Audio: Class 1 (Up to 24-bit/96kHz)
• DAC & Headphone Amp chipset: AKM AK4376A
• Charging: Type-C USB
• Multipoint connectivity

• Full compliance with Hi-Res Audio requirement from Japan Audio Society
• 9mm Neodymium magnet driver
• Sensitivity (DB/MW): 102 ± 3dB
• Frequency Range(HZ): 5Hz – 70kHz
• Max. Input Power: 10mW
• Impedance: 17Ω
• 4 pairs of earbuds (SS, S, M, L sizes)

About i.Tech

As one of the leading Bluetooth brands in the industry, i.Tech has been focusing on innovation and design of high-quality Bluetooth headsets & mobile accessories.

For many years, i.Tech Dynamic has been the number one Bluetooth headsets brand in Hong Kong, Singapore, and Malaysia. With its headquarters in Hong Kong, iTech is well positioned to reach the world, and stay strong in Asian markets.

As an innovative and design-focused brand, i.Tech Dynamic has won several international prestigious awards including CES Innovation award, iF design award, etc. In recent years, i.Tech has actively developed premium phone accessories and released a new brand of ProStereo™ to bring their customers a wider range of high-quality mobile audio products.

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