Today is a special day. I’m writing a review for the TINHIFI C0 Elf IEMs. I’ve been looking forward to trying out a pair of TINHIFI In Ear Monitors (IEM) for a while. From what I’ve seen, TINHIFI has a dedicated following within the audio world, so I was excited to be sent a pair.

TINHIFI sent me a pair of their C0 Elf IEMs, with their 2-pin connector cable (non-mic version) which features a tangle-free design.

You get a professional tuned IEM, which allows for better audio transmission, and thus reduces unnecessary noise and distortion. You get a high quality aluminium body, and a titanium composite diaphragm.

So what are they like? Time to test them out!

Packaging and Contents.

The TINHIFI C0 Elf IEMs come packaged in a cardboard box, which shows logo images and specifications printed on it. The box measures 9.0cm x 9.0cm x 3.2cm and weighs 75G.

Image shows the outer box. It's white in colour and features the word ELF on the front.
Packaging Image – Image Source – My Helpful Hints (Subject to Copyright)

Inside the box you’ll receive the following: 1x Pair of IEM’s, 1x 2-Pin Connector Cable, 6x Pairs of Silicone Ear-Tips, 1x Pair of Silicone Wing-Tips, 1x Multi-Lingual Warranty Card.

Image shows the contents in a laid out position.
Contents Image – Image Source – My Helpful Hints (Subject to Copyright)

The supplied cable is a standard 2-pin 0.78MM cable and measures 1.3M in length. You get a Thermoplastic Elastomer (TPE) outer coating and with a oxygen-free 4N copper cable that ensures perfect audio, all without distortion.

You get a little blue dot on both each IEM and on each pin of the cable, so you can ensure correct connectivity every time.

Image shows the IEM and cable being lined up.
Product Image – Image Source – My Helpful Hints (Subject to Copyright)

You also get supplied with a pair of silicone ear-wings too. Although I preferred to not use them, but preference and all that I guess. If you’d like to use them, they simply slide on the cable.

Image shows the wings fitted to the IEM's.
Ear-Wings Image – Image Source – My Helpful Hints (Subject to Copyright)

The Ear-Wings measure 48.2mm in length, and feature a slit along the length of the wing.


Each TINHIFI C0 Elf IEM measures 22.7mm x 10.8mm and weighs just 4.1G each. TINHIFI supply a total of 6 pairs of ear-tips too, so you’ll be sure to find a fit that’s perfect for you.

Image shows the the ear-tip removed from the IEM.
Ear-Tip Image – Image Source – My Helpful Hints (Subject to Copyright)

The pair I have are finished in a gun metal grey, TINHIFI also sent the non-mic version of the cable, but you can choose a mic. TINHIFI even have a digital-to-analogue converter (DAC) chipped cable for both iOS and Android users with either a lightning or USB-C plug. But, for me I have the standard Tip Ring Sleeve (TRS) 3.5mm gold-plated plug.

Image shows the 3.5m jack plug.
Plug Image – Image Source – My Helpful Hints (Subject to Copyright)

Sound Quality.

I’ve been wearing the TINHIFI C0 Elf IEMs for a few hours each day, for a couple of weeks now, they’re incredibly comfortable and with no ear fatigue. How do they sound? Absolutely brilliant! That’s the short answer.

I was impressed with both the bass and vocal quality, very clear, precise, and a pleasure to use for prolonged periods of time.

Noise isolation is above average too, minimal leakage, thanks to both the CNC machined design of each IEM and the huge selection of silicone ear-tips that means you get a closed listening experience. Noise cancellation is also good too, background noises are minimal, which means more audio enjoyment, without distraction.

Image shows the IEM;s in the palm of my left hand.
Product Image – Image Source – My Helpful Hints (Subject to Copyright)

Another good point is the lack of distortion. Even if the volume increased, there was no distortion at all. Still vocally clear.

Overall, they’re a brilliant sounding pair of IEM’s, can’t fault them at all.

Technical Specifications.

  • Brand: TINHIFI
  • Model: C0 Elf IEM
  • Manufacturer Code: N/A
  • Manufacturer Reference: N/A
  • EAN: 6972797150227
  • Interface: 0.78mm 2-Pin
  • Frequency Range: 20-20kHZ
  • Sensitivity: 105±3dB @1kHz 0.179V
  • Impedance: 32Ω +15%
  • Plug: 3.5mm gold plated connector
  • Cable Material: 4 Core Copper Cable
  • Driver Unit: 10mm
  • Rated Power: 3mW
  • Max Power: 5mW
  • Compliance: CE, FCC, RoHS


I love the TINHIFI C0 Elf IEMs. They’re superb sounding, incredibly comfortable, and wait for the best part…seriously affordable!

I can’t fault them at all, I’ve really enjoyed testing them for the review and will no doubt continue to grab them moving forward.

If you’d like to purchase this item, please check out the purchasing options below. The RRP for this product is £17.89.


Multi-Purchase Deals

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Customer Service

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AliExpress Reviews

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

Thank you for taking the time to read my post. If you’d like to add a comment or thought on this post, please use the comments section below. I can also be contacted via the online contact form. Keep up to date with the latest news on social media.