Srhythm NC25 ANC Headphones

Srhythm NC25 ANC Headphones


My Rating



  • Excellent Sound
  • Great Value
  • Comfortable
  • Lightweight
  • Strong Signal Strength


  • No Battery Indicator

Today I’m going to be reviewing the Srhythm NC25 ANC Headphones. I previously reviewed the Srhythm NC75 ANC Headphones and scored them a perfect 10/10 and boasted on social media that they’re the best headphones that you can buy. So, the NC25 headphones have a lot to live up too!

The NC25 headphones have the same features as the NC75 but are smaller is size but are foldable and can fully rotate.

The NC25 headphones come with Srhythm’s ANC technology, a strong Bluetooth 4.1 CSR chipset, a 360mAH in-built Lithium-Ion battery that will produce audio for around 12-16 hours (Depending on ANC use).

So, are they as good as the NC75 Headphones? How do they sound? Time to test them out!

Packaging and Contents.

The Srhythm NC25 ANC Headphones come packaged in a plain looking Black cardboard box with product images printed on the front and specifications printed on the reverse. The box measures 22.5cm x 15.5cm x 5.5cm and weighs 420G.

Srhythm NC25 ANC Headphones
Outer packaging Image – Image Source – My Helpful Hints (Subject to Copyright)

When you remove all the contents from the box, you’ll find the following: 1x Headphones, 1x Hard-Shell Case, 1x Micro USB Cable, 1x 3.5mm AUX Cable, 1x Airplane Adapter, 1x Multi-Lingual User Guide.

Srhythm NC25 ANC Headphones
Contents Image – Image Source – My Helpful Hints (Subject to Copyright)

Srhythm NC25 ANC Headphones.

The Srhythm NC25 ANC Headphones are Black in colour and made from plastic, foam and metallic materials. They measure from ear-cup to ear-cup (Measuring from the bottom of the ear-cup and across the top of the headband to the bottom of the other ear-cup) 50.0cm but can extend upto 60.0cm and weigh 180G. These ear cups rotate and swivel, so you can a fit that’s suitable for your head. They also fold flat for storage and transporting.

Srhythm NC25 ANC Headphones
Folded Position Image – Image Source – My Helpful Hints (Subject to Copyright)

The headband is also padded with soft memory foam and sits comfortably on your head.

The Ear-Cups.

The ear cups rotate 115° and each one is heavily padded with memory foam and PU leather, each ear-cup measure 10.0cm x 8.0cm with the centre section hole measuring 6.0cm x 4.0cm. Wearing the headphones with these padded ear cups make for a very comfortable experience. The ear-cups also fit and surround my ears perfectly.

Srhythm NC25 ANC Headphones
Image of the Ear-Cup – Image Source – My Helpful Hints (Subject to Copyright)

Functions can be controlled with the right ear cup.

Srhythm NC25 ANC Headphones
Product Image – Image Source – My Helpful Hints (Subject to Copyright)

You’re able to do the following, all on the right-hand side ear-cup.

MFB Button – This button powers on/off, play’s/pauses audio, this button will also answer/ends phone calls.

Volume + Button – This increases the volume and by pressing and holding will skip forward a track.

Volume – Button – This decreases volume and by pressing and holding will play a previous track.

ANC Button – Turns on ANC and turns it off again.

With a little practice you’ll be able to control your music tracks without having to think about where the button is located.

Charging and Setting up the NC25 Headphones.

Charging is a simple process and will require using the supplied Micro USB cable (Which measures 60.0cm in length) and will require a power source of 5V DC.

The Micro USB charging port is located on the bottom of the right-hand side ear cup.

Any power source will do, and the charging time takes around 2 hours and will last anywhere from 12 hours to 16 hours, depending on volume and ANC use. A power LED light will show Red when charging and go out when fully charged.

Once charged you’ll want to pair the Srhythm NC25 ANC Headphones to your device via a wireless Bluetooth connection. This is very simple, and you’ll need to power on the headphones by pressing and holding the Multi-Function button. You’ll hear and audible tone to confirm that they’re switched on. Now, perform a Bluetooth search on your device and locate and pair to the option ‘NC-25’, and that’s it. You’re all set.

The best way to enjoy these headphones is via a wireless Bluetooth connection. But if the battery has depleted on your headphones, or if want to use on a non-Bluetooth enabled device, then you can use the supplied AUX cable. The length of this cable is 100.0cm and is a standard 3.5mm AUX plug.

Sound Quality.

I rated the NC75 headphones a perfect 10/10 and the sound quality was truly amazing. The NC25 headphones are also amazing for sound quality.

The sound is super clear with no distortion whatsoever, even when increasing the volume way passed what I’d call a comfortable level, they still produce high quality, clear, crisp sounding audio.

Bass tones are also noticeable too, and quite punchy (If you select the right tracks) and without even using the ANC function you’re totally immersed into your music library with absolutely no background noise being detected whilst using them. In fact, for about 90% of the time you’ll not need the ANC function, but if you turn it on, you’ll instantly hear the music volume change and counteract any background noise being detected. I was very impressed by both the ANC function and the sound in general. I can’t find any improvements to report back too!

Advanced active noise reduction technology quells airplane cabin noise, city traffic or a busy office, and cancels 85% of stable low frequency background noise. The noise reduction is up to 18-23dB.

The noise isolation is also very good with very minimal audio bleeding can be heard from around you.

There’re perfect, just like the NC75 headphones!

Other Features.

The Srhythm NC25 ANC Headphones also come with a built-in microphone so you can take incoming phone calls too. The microphone is very good, and the call quality is the same as you’d have if you used the phone to your ear.

The Bluetooth range is around 10M, and the signal quality is strong. I tried my best to block and interfere with the signal, but it was no use, it’s too strong.

Srhythm NC25 ANC Headphones
Product Image – Image Source – My Helpful Hints (Subject to Copyright)

There’s one notable difference from the NC75 that needs mentioning. It’s the battery remaining level icon is not available on your device. So, you don’t know the percentage of the remaining battery life of the NC25 headphones. That’s about all I can find that need’s improving. Not bad though considering all the positives.

Technical Specifications.

  • Brand: Srhythm
  • Model: ANC Bluetooth Headphones
  • Model Code: NC25
  • EAN: N/A
  • ASIN: B07C8GM4H1
  • Battery Capacity: 3.7V 360mAh
  • Input: 5V 220mA
  • Charging Time: ≤ 2 Hours
  • Usage Time: ≥ 15 Hours
  • Bluetooth Version: V4.1
  • Bluetooth Chip: CSR
  • Working Range: ≥ 10M
  • Bluetooth Profile: A2DP, AVRCP, HSP, HFP, CVC
  • Impedance: 32Ω ± 10%
  • Driver Diameter: 40mm ∅
  • Magnet: Neodymium
  • Frequency Response: 20Hz -20KHz
  • Active Noise Cancellation: Yes
  • Active Noise Cancellation: ≥ 23-27 dB
  • Sensitivity: 105 ± 3dB
  • Waterproof Rating: IPX4
  • Compliance: CE, FCC, RoHS


I absolutely love the Srhythm NC25 ANC Headphones. They along with the NC75 headphones are the best audio products that I’ve had the pleasure to review. I was trying to find something to score the NC25 down on and can only find the lack of a battery remaining level as something to mention. And that’s really trying to find something. Normally I find headphones uncomfortable and usually settle for in-ear earphones, but the NC25 are very comfortable indeed. My ears didn’t get warm either, which is a normality for me after wearing headphones.

The NC25 headphones are lighter to wear than the NC75 but without losing any of the sound quality!

So, to summarise, they sound amazing, they’re super comfortable, and have an un-breakable Bluetooth signal. Excellent!

If you want the Srhythm NC25 ANC Headphones for yourself, they’re available for purchase only on Amazon. The RRP for this product is £54.99.

Product sample provided by Srhythm in exchange for a detailed, unbiased review.

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