• Detachable Cable Design
• MMCX Connectors
• Hi-Res Audio Certified
• MR Certified

Hi-Res Audio Certification

The F9 RED has been certified by the Japan Audio Society to be "Hi-Res Audio" capable. This means that the F9 RED is capable of a frequency response up to 40kHz, which can fully reproduce the audio and give you a natural and life-like listening experience that truly lets you listen to the music the way the artists wanted it to sound.The F9 RED has been certified by the Japan Audio Society to be "Hi-Res Audio" capable. This means that the F9 RED is capable of a frequency response up to 40kHz, which can fully reproduce the audio and give you a natural and life-like listening experience that truly lets you listen to the music the way the artists wanted it to sound.

MR Certification

The F9 RED is also MFi certified, so you [ Made for can be sure that the in-line controls iPod IPhone iPadi work perfectly with your iOS devices.

Standard detachable MMCX connector, the freedom to suit your sound signature preference

F9 RED is designed to be detachable with MMCX connector and comes standard with a 3.5mm single-ended audio cable with in-line control and a 2.5mm balanced cable.

The single-ended ca ble comes with a fully-featured set of in-line controls - it supports playing and pausing of songs, switching tracks, volume 360°adjustment, and even calls with its built-in high-definition microphone.

The 2.5mm balanced cable not only significantly reduces left and right channel crosstalk (thus increasing channel separation), but also reduces external interference to your audio signal and improves the signal-to-noise ratio. With the balanced cable, the F9 RED can truly take advantage of balanced amplifiers that provide wide-open soundstages as well as impactful yet tightly-controlled bass.

Using Aerospace Materials to Achieve Exquisite Sound

The core part of an earphone's sound is the driver diaphragm - without great diaphragm design and materials, you can never achieve truly excellent sound. The F9 RED utilizes a titanium driver diaphragm, which is lighteryet harder than the typical diaphragm.This allows the F9 RED to be more capable in transient response and to be more dynamic, making for a wonderfully rich yet delicate sound. Compared to the EX1, the F9 RED maintains its highly resolving nature, but has a more even mid and treble frequency response as well as deeper and fuller bass.

Sophisticated Rugged Design through Precise Craftsmanship

The F9 RED's red outer shells are made of anodized and galvanized aluminum alloys, allowing both your eyes and your hands to immediately acknowledge the F9 red's refined yet rugged design with its pleasing texture.

Angled Design for All-Day Comfort

Compared to the typical in-ear monitor that inserts the earphone directly into your ear, the F9 RED utilizes a more comfortable yet more snugly-fit angled design. Such a design combines the advantages of both earbuds and traditional in-ear monitors. The F9 red's angled design makes it so that you don't have to insert the F9 RED too deeply into your ears like with earbuds, but yet you still get the exceptional isolation from outside noises like with an in-ear monitor and avoid discomfort or burden during longtime wearing.

Tougher due to Premium TPE Materials

The F9 red's wire sheath is made from TPE (thermoplastic elastomer) - this ensures that the cable will last for years to come due to its material being resistant against corrosion, aging, and even color-changing.The single-ended and balanced cables are made up of 24-stranded, braided oxygen-free copper (OFC) wire. The 2.5mm balanced cable also further has a layer of 66-stranded copper wiring on top of its core, for extra shielding and even greater protection from external interference.

Calls and Music at the Tips of Your Fingers

Built into the F9 RED's single-ended cable are in-line controls with a simple three-button design. Play, pause, volume adjustment and switch between your music with Fii0's newer music players such as the X1 2nd gen, the X5 3rd gen and your other mobile devices (i0S devices and most Andorid devices).You can even make crystal-clear calls using the F9 RED on Apple and Android devices with its built-in high-definition microphone and dedicated call button.In addition, there is a switch to on the side of the in-line control unit to change between Apple mode and Android mode, allowing you to use your F9 RED with many devices whenever you need to.

With EarTips and Accessories, Flexibility is the Name of the Game

The F9 RED comes with 6 pairs of silicone eartips -3 pairs of red eartips and 3 pairs of mixed-colored tips. Each color comes in small, medium, and large sizes. So not only can you choose which ear tip to use based on what is most comfortable to you, you can also choose eartips based on your sound preferences, as different ear tips give different sound signatures. Besides the ear tips, the F9 RED also comes with a waterproof case to store your earphones in, so that you may carry around your F9 RED Without worry of it being damaged.