If you want immersive, studio-quality stereo sound with seamless touch controls and a compact charging case for daily listening, choose Supersonic IQ Sound IQ-243TWS; if you need an open-ear bone conduction headset that stays secure during intense swimming, running, or cycling while keeping you aware of your surroundings, choose ERAZERL NE86. This isn't a close call between two similar earbuds; these are fundamentally different tools designed for opposite ends of the audio spectrum. One is built for the audiophile who prioritizes fidelity and immersion in a quiet space, while the other is engineered for the athlete who demands safety, durability, and situational awareness in chaotic environments.
• Supersonic IQ Sound IQ-243TWS: Delivers dynamic driver stereo sound with IPX4 water resistance and 8 hours of battery life per charge, but trades off environmental isolation for a standard in-ear fit. Best for home listeners and commuters seeking high-fidelity music.
• ERAZERL NE86: Offers IPX8 swim-proof durability, Bluetooth 6.0 connectivity, and an open-ear design for total situational awareness, though it sacrifices deep bass and privacy due to its bone conduction technology. Best for swimmers, runners, and cyclists needing safety.
The Supersonic IQ Sound IQ-243TWS is clearly the choice for anyone treating their audio experience as a priority rather than just background noise. Its core strength lies in the dynamic driver architecture, which pushes a frequency range from 20Hz to 20KHz. That bandwidth covers the full spectrum of human hearing, allowing for crisp highs and punchy lows that you simply cannot get from open-ear designs. If you are an audiophile looking for hi-res neckband headphones for audiophiles or true wireless earbuds that actually respect the source material, this is the device that respects the music. The in-ear placement creates a physical seal that blocks out ambient noise, letting you focus entirely on the sonic details.
Beyond the sound quality, the user experience is refined by features that prioritize convenience. The dual microphones support Environmental Noise Cancellation for calls, ensuring your voice comes through clearly even in noisy settings. You also get in-ear sensors that automatically pause playback when you remove an earbud and resume it when you put it back. This tactile interaction feels intuitive and prevents the frustration of lost audio mid-track. The inclusion of touch controls allows you to manage media and access Google Assistant or Siri without reaching for your phone, keeping the flow uninterrupted.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-26 · 7 min read · Independent comparison
However, this model has clear limitations that define who should skip it. With an IPX4 rating, it handles sweat and rain splashes well, making it suitable for gym workouts, but it is not built for submersion. You cannot take these into the pool. Furthermore, the reliance on an in-ear design means they will eventually cause fatigue during very long sessions for some users. The 8-hour average battery life is solid, but the total charge time of 20 hours suggests a slower recharge cycle compared to modern fast-charging standards. If your primary use case involves heavy sweating, water sports, or activities where blocking out the world completely is unsafe, this unit is not the right tool for the job.
The ERAZERL NE86 exists in a completely different category, designed specifically for the active individual who refuses to compromise safety for entertainment. As an open-ear bone conduction headset, it bypasses the eardrum entirely, transmitting sound through the cheekbones. This design eliminates ear canal occlusion, meaning there is zero risk of ear pain from prolonged wear or hearing loss associated with blocking external sounds. For athletes, this is non-negotiable. Whether you are sprinting on a busy road, lifting weights in a crowded gym, or cycling through traffic, you remain fully aware of your environment. This makes it one of the best wireless headphone options for audiophiles who are also endurance athletes, provided they accept the trade-off in audio fidelity.
Its durability is where this product truly shines. An IPX8 waterproof rating is rare and significant; it means you can submerge these headphones in water freely. Unlike the Supersonic, which only resists splashes, the NE86 is built for swimming. Combined with its flexible memory steel wire frame, it offers a secure fit that won't shake or fall during high-intensity movements like mountain climbing or vigorous cardio. The magnetic charging feature adds another layer of convenience, preventing the loss of small components often seen with standard TWS cases. Additionally, the inclusion of a heart rate monitor and blood oxygen detection turns the headphones into a dual-purpose fitness tracker, eliminating the need for a separate chest strap or wrist device during your workout.
Connectivity-wise, the NE86 utilizes Bluetooth 6.0, which implies a more robust connection and potentially lower latency than older generations. It also supports offline MP3 playback via a TF card, giving you independence from your smartphone while you train. However, the open-ear design inherently lacks the deep bass response and noise isolation of in-ear models. If you expect the "immersive" feel of a closed-back headphone, you will be disappointed. These are functional tools first and musical devices second. They are ideal for those who need with microphone bluetooth headphones for audiophiles who run outdoors, but less ideal for those seeking pure auditory escapism in a quiet room.
• Best for Audio Fidelity → Supersonic IQ Sound IQ-243TWS: The dynamic drivers and 20Hz-20KHz range offer a rich, detailed soundstage that bone conduction simply cannot replicate.
• Best for Water Sports → ERAZERL NE86: The IPX8 rating allows for actual swimming, whereas the Supersonic is limited to sweat and rain resistance (IPX4).
• Best for Situational Awareness → ERAZERL NE86: Open-ear design ensures you hear traffic and pedestrians, a critical safety feature for outdoor runners and cyclists.
• Best for Call Quality → Supersonic IQ Sound IQ-243TWS: Dual microphones with environmental noise cancellation provide clearer voice transmission in noisy environments.
• Best Battery Independence → ERAZERL NE86: Built-in TF card support allows for MP3 playback without needing a paired phone constantly.
• Best Comfort for Long Sessions → ERAZERL NE86: No ear canal pressure means you can wear them all day without the fatigue common with in-ear buds.
• Best for Fitness Tracking → ERAZERL NE86: Integrated heart rate and blood oxygen sensors add value that the Supersonic lacks entirely.
• Best for Privacy → Supersonic IQ Sound IQ-243TWS: In-ear design prevents sound leakage, so people around you won't hear your music.
In my opinion, if I were buying a pair of headphones specifically for listening to music as an audiophile, I would choose the Supersonic IQ Sound IQ-243TWS. The dynamic drivers and frequency response provide a depth of detail that is essential for serious listening, and the in-ear seal offers the isolation needed to appreciate complex tracks. However, if my lifestyle involved daily swimming, running near traffic, or working out in harsh conditions, the ERAZERL NE86 would be the only logical choice due to its IPX8 rating and safety features. Ultimately, the Supersonic wins on sound quality for the dedicated listener, while the ERAZERL dominates the utility sector for the active athlete.
Only the ERAZERL NE86 is suitable for swimming thanks to its IPX8 waterproof rating; the Supersonic IQ-243TWS is only rated for sweat and rain (IPX4) and should not be submerged.
Yes, both models support calls; the Supersonic uses dual microphones with noise cancellation for clarity, while the ERAZERL includes microphone functionality for hands-free communication during sports.
The ERAZERL NE86 supports offline MP3 playback via a TF card, allowing you to listen without a phone, whereas the Supersonic IQ-243TWS requires a Bluetooth connection to a device.
For pure audio fidelity, the Supersonic IQ-243TWS with its dynamic drivers and wide frequency range is superior, while the ERAZERL NE86 prioritizes safety and comfort over deep bass and isolation.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.