REVIEW – Most listening to of us, at a while or different, wish to take heed to content material privately, whether or not it’s as a result of private nature of the audio, or to keep away from irritating others. Earbuds and headphones are inclined to filter out the remainder of the world, some even creating anti-noise to cancel out undesirable sounds. However what in case you’re operating, strolling, or biking in a metropolis and want to concentrate on the truck looming up behind you or the motive force honking their horn as a result of they will’t be bothered to decelerate whilst you undergo the crosswalk together with your right-of-way? Retaining your situational consciousness whereas additionally permitting you to take pleasure in audio is without doubt one of the driving forces behind bone-conduction listening gadgets. We’ve examined many units through the years right here at The Gadgeteer, and I’ve bought some with my private funds that I nonetheless use. Right this moment, I’m reporting on a set from Nank, their Runner Diver2 Pro Bone Conduction Headphones for Sports. Let’s see how they sound.
What’s it?
The Nank Runner Diver2 Pro are bone-conduction headphones that even have earplugs for swimming.
What’s within the field?
- Nank Runner Diver2 Professional headphones
- Charging cable (USB-A<=>proprietary magnetic connector)
- 3 pair (S/M/L) Sound High quality Enhancers
- Soundproof earplugs
- Silicon Adjustment strap
- Literature/guide

{Hardware} specs
Click on to broaden
- IP68 Waterproof Swimming Headphones
- 10 Hour Play & Magnetic Charging
- Bluetooth 5.3 & 32G MP3 Participant
- Bone Conduction Open-ear Design
- Leakage Discount Sound & Stunning Sound
Design and Efficiency
The Nank Runner Diver2 Bone Conduction headphones are comprised of a versatile materials lined with a medical-grade silicone. They kind a good semi-circle, however can simply be flexed to wrap round your head from ear to ear. An adjustment strap is included, which can be utilized in case your head is smaller (or in case you’re becoming a toddler). All of the controls are on the suitable earpiece.
This is identical facet the place the magnetic charging/knowledge switch cable attaches. This could solely be hooked up a method, with the cable coming via the rear of the loop and shifting towards the entrance. On the opposite finish, you possibly can plug it right into a USB-A charger, or into a pc USB-A port to switch recordsdata. Solely the same old file codecs are supported for switch (extra on this later).

The earpieces are versatile hooks with flat spherical areas roughly the dimensions of a US dime. (For these unfamiliar with US coinage, it’s about 18 mm or .75”). This space will match flush together with your cheekbone, in entrance of your tragus. The corporate web site likens the form to “seahorses”, however I feel it appears to be like extra like a goose or a duck.

With bone conduction, the sound radiates into your head, relatively than being performed as an aural sound that goes into your ear canal, which vibrates the eardrum. This implies the flat space must relaxation towards your cranium as near the bone as attainable.
The “head” (if we’re staying with Nank’s seahorse metaphor) might be flexed nearer to the principle physique, placing the tip of the “nostril” straight over the opening of the ear canal. That is speculated to (and, in my testing, largely succeeds in) delivering a clearer sound. (Different bone-conduction headphones I’ve used solely sat on the cheekbone and had no adjustment, so I discovered this fascinating. I don’t understand how far this pushes the technical definition of bone conduction. Is it only a approach of masking the ambient noise? It did make the sound higher, however I didn’t use this mode a lot whereas biking in visitors.)

Included within the bundle are what Nank name Sound High quality Enhancers. These are discs of a semi-soft materials that match over the opening of the ear canal. The ideas of the headphones relaxation straight on the middle of those, and the sound is performed straight into the ears. Particularly when listening in water or in harsh environments, that is speculated to make a distinction within the sound high quality and the amount transmitted. It felt okay in case you’re comfy having one thing flat throughout your ear. I discovered the sound not as clear with them put in, which is odd. I’m unsure if there was an echo throughout the ear canal from a sympathetic vibration or what the problem was, however it was decidedly much less clear, along with being uncomfortable. I desire earplugs (that are additionally included), to make use of whereas swimming.

Talking of swimming, one of many hallmark options of the Runner Diver2 Professional is that content material might be added to the machine straight so to pay attention with out having to pair it with a BlueTooth host machine. That is advantageous when you have content material in one of many supported codecs, however most of us now have streaming music companies, relatively than downloading recordsdata in mp3, flac, WAV, or m4a format. I’ve a set of audiobooks from Audible.com, which, being part of Amazon, could also be one of many largest distributors of audiobooks round. One downside with this service is that they’ve their very own proprietary audio format which solely performs inside their app. Connecting to your machine over BlueTooth will permit you to hear that content material, however BlueTooth doesn’t work when the headphones are underwater. Changing the proprietary Audible format into a type of allowed codecs breaks DMCA. I wrote to the Nank help group for clarification on this level. Their reply, in it’s entirety, is as follows:
Nank(Naenka)
Hello, are the Audible.com downloads audiobooks? If these file downloads are in mp3, flac, ape WAV m4a, and so forth., they are going to be supported for playback; if not they will solely be performed by connecting and utilizing Bluetooth mode, thanks very a lot!
Setup
Cost and pair via commonplace Bluetooth strategies. When you have content material within the aforementioned codecs, hook up with your laptop via the charging cable and the machine will present up as a storage drive. Information can then be loaded and performed randomly or in file-sort order.
What I like concerning the Nank Runner Diver2 Professional headphones
- Can work with Bluetooth or downloadable content material
- Very comfy to put on
What I’d change
- Wants a journey case
- Make an settlement with Audible and help their Audiobook format
Last ideas
Listening to audio content material whereas exercising might be the second most typical use case for customized listening, second solely to listening whereas commuting. (That is pure anecdata, however you recognize I’m proper!) Generally, you wish to block out all of the sounds of the individual on the subsequent machine within the health club grunting and huffing, and infrequently, once you’re using or operating or swimming, you wish to hear different issues in your rapid neighborhood which will impression your security. Bone conduction headphones are nice for this. The 2-mode carrying type of the RD2s make it simple to listen to a number of your atmosphere after which shortly hear a lot higher element and fewer of the surface world by shifting to the “Noise Cancelling Mode”. This easy adjustment makes them a pleasant choice to the Transparency mode of many noise-canceling headphones.
Value: Normally $139.99, on sale for $111.99
The place to purchase: Firm Webstore
Supply: The pattern of this product was supplied by Nank. Nank didn’t have a last say on the evaluate and didn’t preview the evaluate earlier than it was printed.


