Hot-spot Q&A about FiiO Headphones

 As a novice in the earphones industry, you could see our improvement this year, especially the lately released detachable balanced earphones F5 and F9 are well accomplished by our users. Thanks for your support to FiiO all the way!

To get you more acquainted with our earphones, we collect the feedback from our customers and some problems we think you might encounter below for your reference. We will also update this post if any more feedback in the future.

 FAQ of F9

1. Why is the volume control of F9 not working on iPhone?

A: First of all, ever since iPhone 7, there are iPhones with 3.5mm headphone jack and without 3.5mm headphone jack. We could see from the trend that iPhone will directly use lightning earphones or Bluetooth earphones. And those earphones will certainly come with in-line remote control. And we will need the MFi certificate and dedicated chips from Apple to support the whole functions for the existing iPhones. Otherwise, we could only support Play/Pause for iPhones.

   So far, only the F5 in-line remote control could be perfectly compatible with Android/Apple devices. And it has been authorized the MFi certificate. Our other earphones which have the remote control could only support Play/Pause with iPhone.

   Besides, the previous iPhone before iPhone7 on the market are getting less and less. So our future 3.5mm in-line remote control earphones will not support the remote control on previous gen iPhones. Please kindly understand that.

2. The spec of F9
A: Please refer to the introduction on our website：http://fiio.net/en/products/74/parameters.

3. What's the diameter of F9's conduit?
A: It's maximum diameter is 6.0mm. It's recommended to choose 5.0mm eartip if you're planning to buy foam eartip and choose 3.5-5.0mm eartip if you're planning to buy silicone eartip. Theoretically, the smaller the aperture of the eartip is, the more bass you could get, and the larger the aperture is, the better pitch you could get. PS: For reference only. 

4. Does F9 comes with noise cancelling? 
A: No,  F9 is not noise cancelling.

5. What's the balanced armature of F9?

A: F9's drivers are from Bellsing.

    The upgraded version of F9: F9 PRO, will use the drivers from Konwles.

6. What're the materials for the F9's 3.5mm cable and 2.5mm cable?
A: 3.5mm cable uses the enamelled wire since silver-jacketed wire might cause short circuit to the in-line control.

2.5mm balanced cable uses the silver-plating oxygen-free copper core which purity is 5N. 

7. What's the FiiO balanced replacement cable for F9?
A: F9 comes with MMCX connector so it could be used with FiiO RC-MMCXB.

8. Could the cable of F9 be used with other earphones?
A: F9's MMCX connector is designed to be smaller, so it could be compatible with most of the MMCX earphones on the market. Please kindly refers to the introduction of our RC-MMCXB: http://www.fiio.net/en/products/58. 

9. What're the accessories of F9?
A: F9 comes standard with one 2.5mm balanced cable, one 3.5mm single-ended remote control cable, balanced eartips and bass eartips each 3 pairs including Large, Medium and Small size. Red F9 comes with Red balanced eartips and Red&Black bass eartips. Black F9 comes with Black balanced eartips and Red&Black bass eartips. It also comes with a water-proof protection case to protect your earphones.

10. Would the cable of F9 create Microphonics? 
A: Both cables with F9 are quite soft and F9 adopts over-the-ear design. So it wouldn't create microphonics.  

11. Are there any tips for replacing the detachable cable?

A: Try rotating the Earphone unit before detaching the cable or after installing it; b. The earphone unit and cable should be kept in line when operating; c. Try using your fingernail to separate the cable from the earphone unit by the connecting gap.

12. What're the differences between the F9 and F9 SE (standard edition)
A: Please click this link (http://fiio.net/en/products/74/parameters) to check the comparsion.

 FAQ of F5

1. The specifications of F5
A： Please check this link: http://http://fiio.net/en/products/69.

2. How to use the in-line control of the F5?

A: Play Music:
Pause/Play: Click the middle button once to pause/play music;
Next Track: Click the middle button briefly twice;
Previous Track: Click the middle button briefly three times;

Phone Call:
Answer/Hang Up: Click the middle button once
Refuse: Hold the middle button

Adjust Volume: 
Adjust by clicking the Volume Up or Volume Down button
(*The F5 is MFi certified, so it can control the volume of the Apple iOS devices)

3. What devices are supported by the F5's inline control?
A： The F5 is MFi certified, so it's in-line control is completely compatible with the Apple iOS devices.
There is a mode switch on the F5's in-line control unit, which is used for switching between the iOS mode (i) or Android mode (A)
The F5 is also compatible with most of the Android devices. It can be used for music play/pause, switching songs, fast forward/rewind or volume up/down. Due to the existence of different standards among the Android devices, the F5 could not be compatible with all of them on the in-line volume control.

4.Comparison of specifications among the F-series Earphones
A: Please check this link: http://fiio.net/en/products/74/comparisons.

5. Can I use the Earphone cable from other brands on the F5?
A: The F5 is compatible with the standard MMCX plugs with no special structure design.

6. What's the outer diameter of the F5's sound tube?
A: The outer diameter of the F5's sound tube is 6.0mm in maximum. If you wish to buy spare eartips for it, it's suggested to buy the eartips whose hole size is 5.0mm. For silicone rubber eartips, the hole sizes from 3.5mm to 5.0mm are basically all fit on the F5.

7. Can I buy the 2.5mm Balanced cable or 3.5mm cable with in-line control separately?
A: Yes, you may contact our support team (sending email to support@fiio.net) if you wish to buy a spare cable.

8. What are the supplied accessories of the F5?
A: The F5 is supplied with a 2.5mm Balanced cable, a 3.5mm single-ended cable with in-line control, and 6 sets of silicone eartips (3 sets of black color and 3 sets of mixed-color, each color comes in small, medium and large sizes). Besides the cables and eartips, there's also a waterproof case to store your earphones in, so that you may carry around your F5 without worry of it being damaged.

 FAQ of F3

1. The specifications of the F3
A：Please check this link: http://fiio.net/en/products/64/parameters.

2.  What are the available colors of the F3?
A: The F3 utilizes the replaceable shell design. There're three colors of translucent shells for each F3 - Red, Blue and Black. 

3. How to use the in-line control of the F3?
A：
Play Music:
Pause/Play: Click the middle button once to pause/play music;
Next Track: Click the middle button briefly twice;
Previous Track: Click the middle button briefly three times;

Phone Call:
Answer/Hang Up: Click the middle button once
Refuse: Hold the middle button

Adjust Volume: 
Adjust by clicking the Volume Up or Volume Down button
(*the in-line volume control is not compatible with the Apple iOS devices)

4. About the warranty of the F3
A：Please check our warranty policies at: http://fiio.net/en/agreement.