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Smart Audio…at Last: i.Tech Launches Innovative ProStereo™ D1 Professional Wireless Hi-Fi Headphone Amp + DAC Bringing High-Quality Audio to Smartphones, Computers

IRVINE, Calif.Nov. 30, 2017 /PRNewswire/ — High-quality audio that headphones enthusiasts and audiophiles have long enjoyed is now coming to smartphones and other computer devices with the launch of i.Tech’s ProStereo™ D1 Professional Wireless Hi-Fi Headphone Amp + DAC.

The company’s complete Hi-Fi audio solution works with any smartphone and computer, featuring a 32-bit sampling rate converter, 40mW+40mW power output (distortion rate <0.02%), and is bundled with a pair of High-Res Audio certified headphones with 5Hz – 70 kHz high-frequency range to deliver smooth and dynamic bass sounds.

Additionally, ProStereo™ D1 supports through its sampling rate converter, any type of music file playing on a mobile phone, or in USB DAC Mode (MP3, AAC, FLAC, etc.), as the audio data can be raised up to 32-bit / 384 kHz and processed by an independent Hi-Fi grade AKM DAC.

“We all know that a high-quality audio experience has been sorely lacking with smartphones and computers, but we are looking to change that with the ProStereo™ D1,” said Patrick Tsang, i.Tech chief operations officer. “You can easily upgrade your music to studio quality. This is finally where the smartphone meets the headphone in audio innovation to deliver the best experience of music enjoyment.”

ProStereo™ D1 comes with a 9mm dynamic driver earphones that are fully compliant and certified with the Hi-Res Audio requirements set by the Japan Audio Society. Listeners will notice a clear and fine sound output with a wide treble performance and a solid, deep bass due to a frequency rate up to 70 kHz.

Along with its sleek, metallic triangular prism design, ProStereo™ D1 also includes a sturdy, circular charging dock to hold the device.

Key features of the ProStereo™ D1 include:

  • Quality Materials — Laser diamond cutting technology and specially designed triangular prism shape created with aluminum.
  • Sampling Rate Converter — Up to 32-bit/384kHz audio data capability.
  • iPhone and Android Compatible — Supporting AAC codec to output Hi-Fi audio whether playing music on iPhone or Android phones.
  • Properly Equipped — Features prestigious AKM DAC & headphone amplifier chip.
  • External USB DAC — Can be used as external USB DAC by connecting the USB cable to iOS/Android device or computer.
  • Maximum Power Output — Maximum power output: 40mW+40mW and distortion rate: <0.02%.


  • Rotatable volume knob with a LED light guide.
  • Solid Bluetooth capability with sampling rate converter and high-end headphone amplifier.
  • Upgraded USB DAC with high-resolution audio specifications.
  • Enables effortless playing of music when connected with Bluetooth-enabled devices.
  • Outstanding craftsmanship with a strong bottom for the device to stand on different surfaces.

The company has also launched an Indiegogo campaign to bring its products to market.


As one of the leading Bluetooth brands in the industry, i.Tech focuses on innovation and design of high-quality Bluetooth headsets & mobile accessories. For many years, i.Tech has been the top Bluetooth headsets brand in Hong KongTaiwanSingapore, and Malaysia. With its headquarters in Hong Kong, i.Tech has won several prestigious international awards, including the CES Innovation Award, iF Design Award and Electronic Industry Award. In recent years, i.Tech released a new brand ProStereo™ to bring customers a wider range of high-quality mobile audio products.

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I am the owner of and the Verizon Wireless Reviewer for Ben’s love of gadgets came from his lack of a Nintendo Game Boy when he was a child . Ben vowed from that day on to get his hands on as many tech products as possible. Ben’s approach to a review is to make it informative for the technofile while still making it understandable to everyone. Ben is a new voice in the tech industry and is looking to make a mark wherever he goes. When not reviewing products, Ben is also a 911 Telecommunicator just outside of Pittsburgh PA. Twitter: @gizmoboaks Hangouts: Beavercountyemt Skype: Ben.Oaks

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