Campfire Audio

Campfire Audio - IO

Includes GST of ₹ 3,812 Info

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One of the reasons headphones and earphones in India are more expensive than overseas is because of the Goods & Services Tax in India. Don't let the GST input go to waste especially if you can avail an offset. All products sold on Headphone Zone carry a GST compliant invoice and all products sold include an 18% GST. Simply enter your GST number at the time of checkout.
EMI Starting from ₹ 2,232.

Buy Headphones on EMI

Go for an easy EMI scheme which allows you to pay for your orders over a convenient period. A minimum purchase value of Rs. 500 is required to avail the EMI facility and the facility can be availed for tenures of 3, 6, 9 or 12 months.

After checking out, Select the "Credit Card / Debit Card / Net Banking / EMI" option, which will then direct you to the CashFree Payment gateway. Select your card and check the installment value and the overall interest charged on the transaction. 

The interest rate charged varies from bank to bank. Here is a summary of the interest rates:

Bank 3 Months 6 Months 9 Months 12 Months 18 Months 24 Months
AXIS 12% 12% 14% 14% 15% 15%
STANDARD CHARTERED 13% 13% 14% 14% - -
ICICI 13% 13% 13% 13% 15% 15%
YES BANK 12% 12% 13% 13% 14% 15%
HDFC 15% 15% 15% 15%

These are annualized interest rates charged on a monthly reducing balance, which means that the principal amount is reduced with every EMI and the interest is calculated on the outstanding balance.

No processing or convenience fees are charged on any EMI transactions.


  1. Minimum Order value for EMI eligibility varies from Bank to bank. 
  2. EMI purchases need to be made on a single credit card and cannot be split across multiple cards.
  3. EMI monthly schedules begin from the next card billing statement post the transaction date as determined by your bank.


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7 Day Replacement Guarantee Info

7 Day Replacement Guarantee

All products are covered by the Headphone Zone 7 Day Replacement Guarantee. This product is eligible for a free replacement in case you receive a damaged, defective or different item.

Please keep the product in its original condition with all accessories & packaging for a successful return. We may contact you to assess the damage or defect before issuing a replacement.

Please note that physical damage cases need to be brought to our notice within 24 hours.

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2 Years Manufacturer's Warranty Info

Warranty & Service

This product is covered by Campfire Audio's 2 Year Warranty against manufacturing defects. The Authorised service partner for all warranty claims in India is Headphone Zone.
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7 Day Replacement Guarantee

All products are covered by the Headphone Zone 7 Day Replacement Guarantee. This product is eligible for a free replacement in case you receive a damaged, defective or different item.

Please keep the product in its original condition with all accessories & packaging for a successful return. We may contact you to assess the damage or defect before issuing a replacement.

Please note that physical damage cases need to be brought to our notice within 24 hours.

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7 Day Easy Exchange

This product is eligible for the Headphone Zone 7 Day Easy Exchange. Don’t like your purchase? Simply exchange it for another product of your choice!

Please keep the product in its original condition with all accessories & packaging for a successful return. Once returned & inspected, you’ll receive full store credit in your Headphone Zone account for you to choose another product.

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Campfire Audio - IO (B-Stock)

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Designed in

V-Shaped Sound

Ideal for

Best Suited for
Portable Use

2 Years of

2 Balanced Armature


Litz Cables

MMCX Cables



Campfire Audio started small before growing big, just like a bonfire starts with a small flicker of light. Their aim is to create something special for those who care about their audio the most. Each model in their range has been refined over the years to create what we hear today—including the IO.



Experience a life-like sound with unbelievable imaging and layering that you’ve never heard before. The IO consists of 2 separate woofer & tweeter balanced armature drivers that delivers an articulate bass that complements the refined mids & treble. The Tuned Acoustic Expansion Chamber (T.A.E.C.™) technology provides a natural and open top-end extension that people have come to expect from Campfire Audio earphones.



The Campfire Audio IO features a ‘Garnet’ Red Anodized finish with 24K gold-plated screws and a custom beryllium/ copper insulated MMCX connector. The machined aluminium body and stainless steel spout are lightweight and durable while the moulded ear hook is designed to replace the memory wire for a secure fit. The Super Litz Cable is the perfect balance of physical gauge and performance. Its smokey jacket adds a unique finish to it.



The IO has been designed in Portland, Oregon on French Paper Co. Stock, U.S.A. Each piece is carefully assembled by hand. The handmade construction ensures a superior build due to the attention paid to every detail. Thus, this in-ear is one of the finest in its class.



DRIVERS Dual Balanced Armature Drivers
CABLE TYPE Tangle Free
CABLE TYPE Super Litz Cable
BOX CONTENTS 1. Campfire Audio-IO Earphones
2. Premium Campfire Audio Leather Earphone Case
3. Campfire Audio Smoky Jacket Litz Cable – Silver Plated Copper Conductors with Berylium Copper MMCX and 3.5mm Stereo Plug.
4. Final Audio Tips (xs/s/m/l/xl)
5. Campfire Audio Marshmallow Tips (s/m/l)
6. Silicon Earphone Tips (s/m/l)
7. Campfire Audio Lapel Pin
8. Cleaning Tool


Campfire Audio - IO vs competitors
Campfire Audio - IO Campfire Audio - IO vs competitors
₹ 21,990/- ₹ 29,990/-

Shure - SE425vs competitors
Shure - SE425 Shure - SE425 vs competitors
₹18,999/- ₹23,100/-

Meze - Rai Solovs competitors
Meze - Rai Solo Meze - Rai Solo vs competitors
₹ 19,990/-

Astell&Kern - Billie Jeanvs competitors
Astell&Kern - Billie Jean Astell&Kern - Billie Jean vs competitors
₹ 8,999/- ₹ 24,999/-

Sound Signature
Driver Type Balanced Armature Balanced Armature Hybrid Balanced
Driver Configuration 2x BA 2x BA 1x DD 2x BA
Sensitivity 109dB 109dB 105±3dB 119dB
Impedance 26Ω 20Ω 16Ω 18Ω
Compatibility Android & iOS Android & iOS Android & iOS Android & iOS
Detachable Cable
Connector MMCX MMCX MMCX 2-Pin
In The Box Campfire Audio-IO Earphones
  Final Audio Tips (Xs/S/M/L/Xl)
   Campfire Audio Marshmallow Tips (S/M/L)
   Silicon Earphone Tips (S/M/L) 
  Campfire Audio Lapel Pin
   Cleaning Tool
Shure - SE425 Earphones
   1x Universal 3.5 Mm Earphone Cable
   Black Foam Sleeves (S/ M/ L)
   Soft Flex Sleeves (S/ M/ L)
   1x Yellow Foam Sleeves 
  1x Triple Flex Sleeves
   3.5 To 6.3 Mm Adapter 
  Premium Carrying Case
Meze - Rai Solo Earphones 
  Hard Case: Protective EVA Case With Meze Audio Metal Logo
   3 Pairs Of Soft Silicone Eartips S, M, L
   1.3m MMCX Braided Cables Made Of Silver Plated Copper Custom Wires Ending In High Quality 3.5mm
  3 Double Flanged Eartips S, M, L
   2 Deep Insertion Double Flanged Eartips M, L
Astell & Kern Billie Jean IEMs
3.5mm Unbalanced Cable
3x Silicon Eartips
Carry Case
Experts Verdict "The IO reminds me of the Atlas. Not that they have a similar tuning but rather the bold focus by brand on developing a tuning that goes in a very specific direction than generalize to the masses."
"The Shure SE425 sound-isolating earphones are an excellent choice for eclectic listeners who demand stellar audio and a high-quality design."
"The Meze Rai Solo will be the best sounding for most people. It’s easier to listen to for longer periods and it’s the most comfortable to wear for those long periods."
Dark Audio
"Some matches are made in heaven.The Billie Jean in-ear monitors deliver clean, engaging, well-balanced sound at a reasonable price for the audiophile and music lover alike."
Tech Hive



Warranty & Media Reviews

2 Year Warranty

Don't sweat it, this Campfire Audio IO comes with a 2 year warranty from Campfire Audio that covers manufacturing defects. All products featured on Headphone Zone are backed by an original manufacturer's warranty.

Read more about Campfire Audio's warranty in India.

Customer Reviews

Based on 5 reviews
awesome but let it burn in (sound) for a while.....👍

ok these are extremely awesome earphones they sound very open and with good soundstage i don't have experience with many super high end in ear monitors but i love the sound these produce in the beginning i didn't like them cause bass notes were lacking and high cymbal or treble sound was harsh but after listen to 30 or 40 hours or after 7- 10 days they sounded awesome they opened up more and got good bass response without overpowering mids and high became tolerable but the more i listened to them more great there sound became but the comfort fit didn't work a lot due to alright set of ear tips the final e type tips are great for bass enhancement n comfort but they felt have a little suction feeling in ears so i bought spinfit cp145 tips in large size for me n now they feel amazing and sound even smoother i compared them to my nuforce hem 2 and hem2 sound dull and alright but not as open with good soundstage and great highs and bass or mids as a result i kept these i was gonna return them but that comparison made me love them n loved the sound signature as it improved with time it does get more bass notes and smoother highs n good mids as time goes by listening a result they are keeper but need a lot of burn in time for them to sound great, the spinfits improved sound and smoothness as well that suction feeling went away with more awesome sound highs can be a it toooo much for a bass heads in these but bass is great in these just not too bassy by any means then comes the sound the highs goes on and on and its great for acoustic music guitars etc and mids are also great great vocals on these bass is not overpowering but good enough, at the ends of the day i ended up loving these especially with spinfit tips and sometimes it sounds great with comply t400 sized tips but they don't feel comfy so i've got spinfits tips i use them with other cable from fiio mmcx to lightning cable and they sound cool with iphone 7 and streaming or some high res music alike....

We couldn't be happier to know that CampFire Audio IO was the 'key' for experiencing the best sound quality. Thank you so much for the detailed review.

Started liking the sound after couple of weeks

I brought Campfire IO during the first week of Nov this year. Initially I did not like the sound but gave a bit of time and after couple of weeks I started liking the sound. Amazing detail retrieval. Even though many say that the mids are screwed but I think this is a fun sounding IEM. Bass is just perfect, low base is there but it is mild. Highs are like hitting on your face but I like this kind of tuning and this the IEM I have been searching for. Thanks to HPZ for bringing this IEM to India. I used Realme X2 pro with wavelet application and native Dolb Atmos and the other source is Shanling Q1.

Campfire audio's entry level audiophile IEM

I think the title says it all. Beautifully built. So light. Being metallic still weighs as light as a plastic one. With dual BA, it sounds exquisite. No creepy bass. Well behaved Bass. Sibilance is Nil. Treble is also well behaved. Mids are crystal clear. So if you're listening to music, or to a podcast or watching a movie you'll enjoy.
Fit is so wonderful. No sharp edges anywhere. The Litz cable is so light it is non-intrusive.
No irritating cable noise like some other IEMs out there. And it is easy to drive from a mobile phone.

We are incredibly grateful that you took the time out to leave us this note. We look forward to serving you again.

Best IEM and the best to pair with A&K SR25

My goodness these IEMs are mind boggling, initially these did not interest me but after few days I started liking it. I paired it with A&K SR25, my God the best sounding iem hands down. It's Superb.

So glad to know that you love them:) We look forward to serving you again. Happy listening!


Does Wonders. Quality of the Music is great & Happy listening.

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