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7Hz i99

Installment option available at check out page

Package Content

Introductory promotion comes with OE Audio WS-1 True Wireless Bluetooth Adaptor.
Please contact us for other options

Beryllium plated DLC Dynamic Driver Earphone

Crystal clear smooth sound of diamond-like carbon Made of a single piece of meticulously carved stainless steel An Accessory Kit Fit for a King Sounds like sparkling crystals.


  • 7 Hz
    7Hz was founded in 2018 as a team of engineers and audio enthusiasts who came together to test their skills in the realm of audio. By focusing on quality drivers and using precise circuitry design, 7Hz aims to deliver the most efficient setups that best shine the drivers’ natural abilities. 7Hz stands for the Theta Wave, a frequency that is often associated with meditation and harmony. All of 7Hz products reflect this ideal by taking you into a pure musical trance.

    Beryllium Dynamic Diaphragm
    The 7Hz i99 combines the best of the modern dynamic driver technologies - the fast diaphragm response of beryllium and the crystal clear smooth sound of diamond-like carbon. Unlike most common Be diaphragms which are commonly spray coated, the i99 has electroplated Be unto the DLC driver, leading to a more effective display of beryllium’s true characteristics, and ultimately translating to a longer-lasting and purer sound. This innovative technique leads to a much faster diaphragm that better articulates details, and leads to a more powerful and impactful bass. The driver design further extends the dynamic range, causing the sound to be fuller and more comprehensive at every frequency.

    Be Driver, Diamond Housing
    The 7Hz i99 housing reflects the beauty and elegance of diamond. Made of a single piece of meticulously carved stainless steel, the i99 is designed to be both durable, as well as increase the sonic focus of the sound by eliminating unwanted resonance. The i99 has been hand polished to shine brilliantly at every angle and is unlike any other earphone in the world. It simply is a stunning piece of jewelry that also sounds like sparkling crystals.

    An Accessory Kit Fit for a King
    The 7Hz i99 comes with a hand-stitched leather case. With 9 different types of premium eartips, you can find the fit that is most comfortable and best sounding for you. The MMCX silver-plated OFC copper cable was made with newly designed connectors that are longer lasting and more durable than traditional MMCX connectors used in traditional earphones.

  • Brand 7HZ i99
    Driver 13.8mm dynamic driver
    Frequency response range 20-20000Hz
    Impedance 25ohms
    Sensitivity 118db
    Distortion rate <0.2%