KuaiFit K Sport Headphones With In-Ear Personal Trainer – Unboxing and Initial Impressions

By | September 27, 2018

KuaiFit is a maker of personal trainer apps and sport headsets. A couple of weeks ago a representative from KuaiFit reached out to ask if I would be interested in a set of their new wireless earbuds in exchange for publishing my thoughts on the new product. Even though this is a “paid review” of sorts (just a free headset), you’ll get my honest impressions of the product.

The K Sport Headphones With In-Ear Personal Trainer just launched as a Kickstarter campaign this week. The super early bird is currently still available at approx. $20 U.S. Each set of these includes a free 3-month training plan on their mobile app. Being sweat and rain proof (IPX5), they ought to be perfect for working out.

I plan to use these headphones over the next several days for music, audiobooks and workouts, and will publish more detailed thoughts in a week or so. For now, I will provide my initial impressions after using them briefly last night. Let’s start with some unboxing pictures.

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Pic 1- Front shot in the box

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Pic 2 – Back shot in the box

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Pic 3 – What’s in the box

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Pic 4 – Dual charging cable

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Pic 5 – Small and light

The contents of the box include:

  • Two wireless earbuds
  • A dual charging cable to charge both simultaneously from one USB port
  • Larger and smaller cushions to get a perfect fit
  • A sheet with some basic instructions and the training plan activation code

Setup and pair was simple and painless for me. After charging the set during dinner, I got them ready to go in about a minute. You press the ‘K’ button on each earbud until the LED flashes red & blue to indicate it’s in pairing mode. Then open your phone’s Bluetooth settings and pair them like any other device. Whether one or both earbuds are on, they appear and act as a single device with your phone. (My phone is an Android – Moto Z2 Force.)

So far, I used the set with Audible and Spotify, listening to a few songs to check out the range. They sound crisp and clear with Hotel California, but could use a little more bass on Enter Sandman. At this size, weight and price point, I’m definitely willing to cut them a little slack on the lack of a more powerful, booming bass. The other thing I need to figure out is whether there is an option to configure the language on them. When pairing, the voice in the earphones sounds like some East Asian language. I’m no expert, and won’t assume which language I’m hearing. It may be that these early review units are not customized for the consumer’s country. I will clarify this before my full review is published.

I am sometimes a little hesitant to back a technology-based Kickstarter campaign, not knowing if the group can or will deliver on the product. I’ve been burned by a couple of smart watch campaigns in the past. However, I can assure that these earphones are not vapor. They’re already producing enough of them to sent out these early review units. At this price, they seem like a great option, but stay tuned for my full review in a couple of weeks. I’ll be sure to publish it well before the end of the campaign in 27 days.

Stay tuned!

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