Review: Blue Mo-Fi headphones


High-end headphones have been around for a while and many of the makers are household names like Sennheiser, Sony, Shure, Bose, AKG, and Audio-Technica. Now a new player to the headphones game has entered the fray, and it’s doing it in a flashy and innovative way.


Blue has been known for its microphones, but now it has ventured into the headphones arena and it is doing so with its Blue Mo-Fi headphones. When you see the box it is simple but informative; it shows a picture of the headphones and its features. Inside the box you get the headphone, a case, 1.2 meter audio cable with iPhone/iPad control, 3-meter audio cable, 1 USB adapter with AC adaptor, 3.4” TRS adaptor, and 2 prong connector.


The pair of headphones is a thing of beauty and makes it stand on its own. You can tell with one look that they wanted to step outside the box of how headphones should look, as well as how it should work. It has a multi-joint and multi-link design that helps the cups stay flat against your ears. The cups and band are padded with thick foam padding to help ease any pressure that you may feel. This is very good for me since I wear glasses, and usually the cup padding is not very helpful with relieving any pain that may occur. They also have rubber where the joint and cup meet to dampen any kind of movement.

The left side cup is where the built-in amp is located as well as its charge port, audio jack, and ON/ON+/OFF switch. It has some weight to it, so it does not feel and weigh like it’s made of cheap plastic. The overall design is amazing and looks very sturdy. I have faith that this pair of headphones will last me a while.


I have used this headphone for just over a week, and it took me a while to get used to the design. I was conditioned to look for numbers on the band of the headphones to get it right, but thanks to Blue’s joint, I don’t have to do that anymore.

The sound this thing produces is amazing. If you’re looking for a pair of bass-heavy headphones, you are not going to get it here. Blue had engineers create a built-in amp that is capable of bringing a beautiful sound to your ears with very low distortion and low output impedance.

Headphones like Blue’s Mo-Fi use Digital Signal Processing (DSP) which changes the sound when turned on. That’s where Mo-Fi changes the game with its amp and gives you an analog sound with no digital remakes. Mo-Fi’s ON+ gives the headphones delivers more bass to its user.

There is one issue that I found, and that is with the controls on the audio jack. It is located too high up for me to see what I am pressing. Though it is indented with its symbols, I cannot tell if I’m pressing Play/Pause, Volume Up, or Volume Down. Two other things people might see as a negative are the weight (16.44oz), and the size is another issue that people might have.

The amp is stated at 12 hours of battery life but the most if used it on is for 1.5 hours. I did try it again the next day and it still had some juice so I can see it go for 12 hours. But even when there is no battery in the amp you can still listen to it as you would any normal headphone.

I also tested this on some gaming application and it works great. I was playing my PlayStation 4 with my friends and we had a chatroom and was hearing them clearly and with no problems. And they were able to hear me fine. I played a good couple hours and by the time it ended the weight of the headphones can be felt. My neck was a bit stiff and aching so it can be used for gaming but just know that it is heavy and can give you an aching neck if you don’t take it off and rest.

Compared to my Marshall Monitor headphones this blows that away and its not even close. The comfort, design, and audio is on a totally different level. Both are great headphones but I would side with Blue headphones unless Marshall comes out with something similar of a built-in amp. Then I would have to test it and do another comparison.



  • Output power: 240mW
  • THD+N: 0.004%
  • Frequency response: 15Hz-20kHz
  • SNR, self noise: > 105 dB
  • Noise: < 20 uV
  • Battery capacity: 1020mAh


  • Type and size: 50mm, fiber-reinforced dynamic driver
  • Impedance: 42 ohms
  • Frequency response: 15Hz-20kHz
  • Enclosure details: Sealed enclosure with tuned damping materials


  • Weight: 466 g (16.44 oz)
  • Outer dimensions Closed: 21cm x14cm x12cm (8.27″ x 5.51″ x 4.72″)
  • Outer dimensions Open: 18cm x 29cm x 12cm (7.09″ x 11.42″ x 4.72″)

Final Reaction

Overall I was pleased with the build, design, and output of this pair of headphones. It ranks up there with the names mentioned earlier, and it is an amazing product. If you’re in the market for a high-end, innovative pair of headphones that will make heads turn, then this is it. Blue’s Mo-Fi will be the talk in your circle once you bring it out.

You can buy the headphones here for $350.

Rating: 4.5/5 Atoms

 NR 4_5 Atoms - A-

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Jose Gutierrez III
Jose Gutierrez III 705 posts

Jose Gutierrez III is an IT tech by day and nerd by night.