ProStereo D1 Wireless Hi-Fi Headphone Amp+DAC   

Fashionable appearance & function with advanced technology coexist perfectly in ProStereo™ D1. Not only with excellent craftsmanship of laser diamond cutting technology & outstanding product design in the shape of a triangular prism, it’s also a professional wireless USB DAC which equipped with the prestigious AKM+ DAC & headphone amplifier chip with built-in 32-bit/384kHz output. It’s fully complied with Hi-Res Audio! requirement from Japan Audio Society which is surely going to give a new impetus into the mobile audio industry.



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We are extremely honored that ProStereo™ D1 Wireless Hi-Fi Headphone Amp+DAC  to receive this most prestigious level award in Hong Kong in “Consumer Product Design” category. We are earnestly grateful for the recognition received for our works. This achievement has fully manifested our continuous commitment to strive for excellence in product development and receive social recognition.

We are delighted to announce that ProStereo D1 has been awarded as Gold Winners of 2017 Electronic Industries Awards (Audio Visual Products)!! it’s our honor to participate the product presentation session of Hong Kong Electronics Fair (Autumn Edition)!

The “rotatable volume knob with LED light guide” and “disc-type charging dock” making the product an excellent and detailed craft that will satisfy one’s aesthetic senses

No matter with which type of music file you playing on your phone or in USB DAC mode, the audio data can be raised to up to 32-bit / 384kHz<

Supporting AAC codec, the product can output both clear & stable Hi-Fi audio whether you play music on iPhone®^ or certain Android™~ phones

It is not only reduces distortion to an extremely low level, but also enhances music dynamics by the built-in AKM+ DAC & headphone amplifier chip

It can be used as an external USB DAC by connecting the USB data cable & external accessories directly to iOS, Android™~ device even computer#

Fully complies with the Hi-Res Audio! certification requirements of the Japan Audio Society

Other Features




Bluetooth version 4.1
Profile support: HSP/ HFP/ A2DP/ AVRCP
Audio Codec: AAC/ SBC
Talk time: Up to 6.5 hours
Music time: Up to 5 hours (SRC on); Up to 6 hours (SRC off)
Standby time: Up to 100 hours


Box Content

ProStereo™ D1 Bluetooth Receiver
High-Res Audio Headphones
USB Charging & Data Cable
Disc-type charging dock
4 pairs Earbuds (SS, S,M,L sizes)
Quick Start Guide



!The product with this logo is conformed to High-Resolution Audio standard defined by Japan Audio Society. This logo is used under license from Japan Audio Society.

~©2017 Google Inc. All rights reserved. Android is a trademark of Google Inc.

^iPhone is a trademark of Apple Inc., registered in the U.S. and other countries

+AKM is a trademark of Asahi Kasei Microdevices Corporation in Japan, Europe and the United States.

#iOS devices need to be equipped with Apple Lightning to USB Camera Adapter and headphones; While Android smart phones need to be equipped with headphone, plus Micro-B USB OTG (On -The-Go) adapter or USB device (depends on Android smart phone). The sales package does not include the accessories described above.

Disclaimer: Bluetooth headset performance time are rough estimates only. Actual performance time is dependent upon various factors, including but not limited to device type and settings, features being used, temperature, humidity, storage condition and battery condition.

ProStereo™ is a brand held by i.Tech Dynamic Global Distribution Ltd.