The Mifo S are a pair of TWS designed for those who do lots of sport and like working out in the gym regularly. These earbuds currently cost £129.99 and offer the following key features: 

  • Bluetooth 5.2
  • ANC 
  • 40-hour battery
  • IP7 rated 
  • 6 Mic Noise Cancellation
  • Smart touch controls
  • Auto Pairing
  • Transparent Mode.


The Mifo S are the smallest pair of earbuds with the smallest profile in the ear available on the market that I have tested to date.

The presentation box that the buds come in looks quite nice with an image of the buds and the case on the front and key features to the rear.

Take the cover off and you have a green box that inside has the charging case with buds inside, USB-A to USB-C charging cable, 3 pairs of interchangeable eartips and a user guide.

The case and buds are both covered in a metallic coating with sports words printed all over the case and buds such as Pingpong, Dance, Football, Skateboard, & Rock Climbing are printed on the case and the buds. This indicates the kind of sports you can do while listening to the buds. 

The case and the buds really do draw attention and are much better than the plain black buds we have been sent so many times by other brands. The Mifo S also comes in the following colour options: 

  • Black
  • Teal
  • Dark Green
  • White/Blue
  • Black/Green- Sports print

 The case is quite sturdy and includes a button to open the case at the front which also when held for 3 seconds starts the pairing process.

Inside the case, you have 3 LEDs that indicate the battery life on either side of the buds that sit in the case held by small magnets. 

The buds are very compact and in fact, the ear tip is the biggest part of the buds, The Mifo S are fin-shaped and when placed in your ears they do not protrude at all. The buds measure in at 2.5 cm³ with each bud measuring in at 3.5g meaning not only are they small but very lightweight.

They are that small you could in theory go to sleep with them in your ears. They are that comfortable you won’t even notice they are in your ears even after long periods of use.

The fact these are designed for sports, it will come as no shock that the buds are IPX7 rated meaning they can handle sweat when working out and also they won’t be affected if you’re caught in the rain you won’t have to worry about dust either as they are dustproof.

Moving to the battery life you get up to 6 hours of battery life in the buds with the charging case providing 34 hours which is 3 additional full charges. This battery does reduce when ANC is used constantly. This also brings up another issue Mifo S are designed for sleeping as well as sport. However, the battery life won’t last as long as the average sleep which is about 8 hours and the buds in sleep mode only last 4 hours ideal for an hour nap. 

Last but not least the case does not allow fast charging so when you need to give it a full charge it will take 2 hours to go from 0% to 100%.


The Mifo S earbuds are connected via the latest Bluetooth 5.2 and they offer a 10-meter range. The connectivity has been very good in testing the only negative when it comes to the connectivity they don’t support multipoint connectivity.


The audio quality from the Mifo S provides a dynamic sound that focuses on the bass and the highs. The bass has a solid mid-bass that adds some punch in tracks which are bass-heavy. For tracks without a strong bass, the Mifo S will pick up lower sounding instruments and add a light bass. If I could ask for one improvement it would be to make the bass a bit more precise. 

Moving to the treble it’s handled quite well and helps push the vocals forward and gives enough presence to brighter instruments but at the same time keeping it bearable. 

When listening to something like “Amigos Para Simepre by Katherine Jenkins and Mark Masri” the female vocals are never too sharp and you won’t find harsh volume peaks. The song overall uses the mids and highs and is engagingly forward and controlled. The lower mid-tones such as drums or electronic sounds really do hit well and add a bit of thickness to the overall sound. The Mifo S doesn’t just sound good when listening to music they also perform well when watching videos or listening to podcasts the sound is full and the vocals are crystal clear the whole time. 


When listening to music or a podcast you do not want that affected by unwanted outside noise. This is where ANC comes into play and the Mifo S comes with 3 ANC levels:

  • Strong Noise Cancelling
  • Mild Noise Cancelling 
  • Transparency Mode

When ANC has been switched off actually it’s on the mild noise-cancelling function as the buds use a level of passive noise cancelling. The buds do block out a level of unwanted noise due to the fit they have in your ears. When you switch on the ANC (Strong Noise Cancelling) –  the Mifo S reduces the unwanted noise by dampening the darkest and brighter tones which will please users as the most unwanted sounds are reduced significantly.

Transparency mode – This mode is more commonly known as ambient mode and in testing, I will be honest I could not really tell it did much. Yes, the earbuds pick up brighter sounds around you and are helpful when at a train station and you need to listen out for a train announcement. I found the mode was not the best on the market but did allow you to get some outside noise in but it was somewhat insufficient to be able to hear conversations fully around you.


Most earbuds on the market allow you to make calls and the Mifo S is not different they provide acceptable call quality. Wind noise is always an issue when making calls outside but doesn’t impact the noise too much. In testing your voice was very clear with plenty of volume and the ANC helps reduce surrounding noises and allows you to have an uninterrupted call. I did notice the person I spoke to did sound a little soft so the best way around this is just to increase the volume and it will sound much better.  

When the user wants to play online mobile games the Mifo S come with a low-latency mode. It works quite well but you may experience a slight delay in sound effects like gunshots if playing a war based game or the engine sounds on a racing game.