NANK Runner Diver2 Pro Bone Conduction Headphones - IP69 Waterproof

In this review the NANK Runner Diver2 Pro bone conduction headphones stand out as a niche, purpose-built option for swimmers, runners and outdoor athletes who need open-ear awareness plus reliable waterproofing. The single biggest reason to consider them is the combination of IP69 waterproofing and a built-in 32GB MP3 player, which together let users take music underwater without relying on a phone. The review covers comfort, battery life and the practical limitations of switching between Bluetooth and MP3 modes.

Key Features

• IP69 Waterproof: Nano-coating and ultrasonic welding enable continuous underwater use up to 10 m for up to five hours, so they survive pool and open-water sessions.
• Built-in 32GB MP3 player: Stores songs onboard so users can play music underwater after triple-tapping into MP3 mode and turning off phone Bluetooth for swimming.
• Open-ear with adjustable ear hook: A 35-degree adjustable ear hook design lets wearers switch between open-ear and a noise-canceling reduction mode for clearer music in windy or noisy environments.
• Bluetooth 5.4 connectivity: Modern wireless pairing works with iOS and Android devices for on-land listening and calls when not in MP3 mode.
• 10-hour battery life and fast charge: A full charge delivers roughly 10 hours of playback and a 10-minute quick charge adds about 120 minutes for short outings.
• Comfort and secure fit: Ergonomic memory elasticity and a silicone adjustment strap keep the streamlined headphones comfortable with swim caps, goggles or helmets.

Who It's For

The Runner Diver2 Pro is aimed at swimmers and multisport athletes who want an open-ear solution that still delivers usable audio underwater; the onboard 32GB memory lets you leave your phone poolside and maintain music during laps. It also suits cyclists and runners who need environmental awareness while getting a clearer listening experience using the noise-canceling reduction mode in windy conditions.

Those who should look elsewhere include listeners who demand audiophile-level bass or immersive sealed in-ear isolation, and users who need seamless simultaneous Bluetooth streaming and underwater playback without switching modes, since swimming requires MP3 mode with phone Bluetooth turned off.

Pros & Cons

Pros

• Reliable waterproof performance for pool and shallow dives thanks to IP69 construction.
• Onboard 32GB MP3 memory removes the need for a phone when swimming.
• Comfortable open-ear fit with an adjustable ear hook and silicone strap for secure wear.
• Decent battery life with fast-charging that adds immediate playtime after a short top-up.

Cons

• Bluetooth connectivity receives mixed feedback for on-land use, so switching modes can be inconvenient.
• Sound clarity underwater is improved with earplugs and MP3 mode, so expect differences versus typical Bluetooth listening experiences.

Specifications

Our Verdict

The Runner Diver2 Pro is a well-targeted choice for swimmers and active users who prioritize waterproof reliability and the freedom of an onboard MP3 player. It delivers strong value for its use cases with comfortable fit, long battery life and IP69 construction, though users should be prepared to switch modes between Bluetooth and MP3 for underwater sessions.

Frequently Asked Questions

Can I use these headphones underwater with my phone connected?
For swimming you must switch to MP3 mode and turn Bluetooth off on your phone so the onboard player handles audio.

How long will they last on a charge?
Expect up to 10 hours of playback on a full charge, and a 10-minute quick charge provides about 120 minutes of additional playtime.

Are they comfortable with swim caps or goggles?
Yes, the ergonomic memory elasticity, adjustable ear hook and silicone strap are designed to fit securely with swim caps, goggles or helmets.