Nank(Naenka) Runner Diver2 Professional Swimming Headphones

The Nank(Naenka) Runner Diver2 Professional Swimming Headphones.

The Runner Diver 2 Bone Conduction headphones come in a fine box with nice graphics and documentation.
Inside the sturdy box is the RD2, a set of swimming plugs, a silicone rubber strap, the instructions and warranty information, and the magnetic charging cable. The construction is a very soft silicone rubber material on the outside, it feels well-built and comfortable.

The device has a lot of useful features. Including Bluetooth 5.3 that is compatible with iOS and Android Bluetooth-ready devices. Pairs with smartphones, tablets, Mac, PC computers and laptops. It also has a180mAh that gives it 10 hours at 60% volume, its magnetic fast charging technology let it be fully charged in 1.5 hours. It features internal memory of 32GB, that is accessed by pressing the power button three times to switch to MP3 mode, or back to Bluetooth mode, it should be noted that only TF mode works while underwater. There is also waterproof performance and a large 16mm dynamic driver.

Sound impressions:

The Runner Diver 2 is bone conducting and as far as these types of headphones work, they sound very well-tuned.

Bass:
The Bass while not super impactful and deep like a regular headphone can be felt and heard simultaneously, Bass is good and enjoyable even under water.
Midrange:
Is particularly good there is plenty of clarity and details to listen to music or your favorite podcast here.
Vocals sound clear and forward with no harshness.
Treble:
Treble has a great extension with cymbals and instruments sounding clear and natural.

Conclusion:
The Nank(Naenka) Runner Diver2 is a improvement of this kind of device. It has a bunch of features, sounds good and works without any problems for me. I find it a good quality product and great for working out or just walks on rainy days.