Emerson NoiseZero Open-Ear Earphones w/Charging Case and USB-C Cable, Smart AI 100dB ENC Microphone Cancelling 99.999% Noise, Max Privacy, Wireless Bluetooth Earbuds, IPX4, Gym, Work, Travel - White
Want the best price and purchase timing?
Our AI advisor analyzes real-time pricing across all channels to find you the best deal.
AI Verdict
These are open-ear Bluetooth 5.4 earphones with a detachable ENC boom mic, 7-hour battery life, and IPX4 rating, designed for clear calls in noisy places.
These earphones are a situational fit, excelling for users who prioritize crystal-clear outgoing calls in noisy settings and need to remain aware of their environment. The detachable ENC boom mic and open-ear design are specific advantages for these use cases.
If you need complete audio immersion and noise cancellation for your own listening, look for earphones with active noise cancellation (ANC) that seal the ear canal.
Regret Score™
High RiskLower is better — measures purchase-regret risk from real buyer complaints, review credibility, and product maturity
Issues discovered after purchase
Critically weak dimension
Amazon rating vs actual quality
Chance this product isn't for you
Pros
- Microphone features advanced ENC technology, eliminating up to 99.999% of background noise for call clarity.
- Detachable magnetic boom microphone adjusts for precise voice capture.
- Open-ear design maintains situational awareness, allowing you to hear your surroundings.
- Offers up to 7 hours of playback on a single charge, extending to 22-24 hours with the charging case.
- IPX4 water resistance protects against sweat and rain, suitable for workouts.
- Bluetooth 5.4 connectivity provides a stable and fast wireless signal.
Cons
- Open-ear design means they won't provide complete sound isolation, which might not suit noise-sensitive users.
- Sound quality may not satisfy audiophiles seeking high-end audio performance.
- The 8.4-ounce weight might feel substantial for extended wear compared to lighter earbuds.
- The 100dB noise suppression is for the microphone, not for the listener's audio experience.
Dimension Scores
While featuring 'Virtual Bass technology,' the open-ear design inherently limits bass response and overall audio immersion compared to in-ear options, and audiophiles are noted as 'not suitable' for this product.
The microphone offers advanced ENC technology, claiming to eliminate up to 99.999% of background noise for outgoing calls, with up to 100 dB suppression.
The open-ear design and ergonomic earhook are designed for secure, all-day comfort without ear fatigue, while maintaining situational awareness.
With 7 hours of playback per charge and an additional 15-17 hours from the charging case, the total battery life is a solid 22-24 hours.
Best For
- Professionals needing clear voice calls in loud office or outdoor environments.
- Individuals who need to stay aware of their surroundings while listening to audio, like runners or commuters.
- Users requiring a flexible microphone solution for gaming or virtual meetings.
- Active gym-goers needing sweat and rain protection during workouts.
Not Recommended For
- Audiophiles prioritizing immersive, high-fidelity music listening.
- Users seeking complete noise isolation for focused listening in noisy environments.
- Anyone expecting traditional in-ear noise cancellation for their own listening experience.
Watch Out For
- The open-ear design means environmental sounds will always be present, making them inadequate for users desiring complete noise isolation.
- Despite 'Virtual Bass technology,' audiophiles might find the sound profile lacking compared to closed-back or in-ear options.
- The 8.4-ounce weight could lead to ear fatigue during prolonged use, especially for those sensitive to heavier earbuds.
- The '100dB noise suppression' applies only to the microphone's ability to cancel outgoing background noise, not to the audio you hear.
Full Specifications
| UPC | 810171120540 |
| ASIN | B0G1KW4RM2 |
| Brand | Emerson |
| Color | White |
| Style | Modern |
| Units | 1.0 Count |
| Material | Silicone |
| Batteries | 3 Nonstandard Battery batteries required. (included) |
| Impedance | 16 Ohms |
| Generation | 4 |
| Model Name | Emerson ES204-FBA |
| Form Factor | True Wireless |
| Item Weight | 8.4 ounces |
| Sensitivity | 100 dB |
| Battery Life | 7 Hours |
| Control Type | Touch Control |
| Manufacturer | IAI Smart |
| Charging Time | 1.5 Hours |
| Ear Placement | Open Ear |
| Noise Control | Environmental Noise Cancellation |
| Control Method | Touch |
| Earpiece Shape | Hook |
| Controller Type | Touch |
| Headphones Jack | No Jack |
| Number of Items | 1 |
| Special Feature | Advanced ENC Noise-Canceling Technology – ENC microphone filters up to 99.999% of background noise, ensuring professional-grade call clarity even in noisy environments., Bluetooth 5.4 Connectivity – Delivers stable, lag-free streaming and faster pairing with extended range for seamless audio performance., Detachable Magnetic Boom Mic – Flexible 360° adjustable microphone magnetically attaches to either earbud for crystal-clear voice pickup during calls, meetings, or gaming., Open-Ear Ergonomic Design – Lightweight earhooks and soft silicone materials reduce ear fatigue and maintain situational awareness for all-day comfort., Total Call Privacy – Advanced voice-isolation technology ensures callers hear only your voice, keeping your surroundings and anyone around you completely hidden. |
| Audio Driver Type | Dynamic Driver |
| Bluetooth Version | 5.4 |
| Item model number | ES204 |
| Compatible Devices | Laptops & Computers: Pairs with Windows 10 / 11 laptops, MacBook Pro / Air, Chromebooks, and desktop PCs with Bluetooth support., Smart TVs & Media Devices: Works with Bluetooth-ready TVs, streaming boxes (Fire TV, Roku, NVIDIA Shield), and projectors, gaming consoles, Smart Watches & Wearables: Connects to Apple Watch, Samsung Galaxy Watch, Fitbit Sense / Versa series, and other Bluetooth wearables., Smartphones: Works seamlessly with iPhone 14 / 15 series, Samsung Galaxy S23 / S24 series, Google Pixel phones, OnePlus, Xiaomi, Oppo, and all Bluetooth-enabled Android or iOS devices., Tablets: Compatible with iPad (Pro, Air, Mini series), Samsung Galaxy Tab, Lenovo Tab, Amazon Fire HD, and other Bluetooth tablets. |
| Frequency Response | 20 KHz |
| Hardware Interface | Bluetooth 5 |
| Package Dimensions | 6.61 x 3.74 x 1.85 inches |
| Included Components | Detachable MIcrophone, Ear Cushions, USB-C Charging Cable, User Manual, Wireless Charging Case |
| Input Device Interface | Built-in Bluetooth |
| Noise Control Features | environmental_noise_cancellation |
| Water Resistance Level | Waterproof |
| Age Range (Description) | Adult |
| Connectivity Technology | Wireless |
| Specific Uses For Product | Business Calls & Online Meetings, Work from Home, Fitness & Gym Workouts, Gaming & Streaming, Daily Communication, Outdoor Activities, Travel & Commuting, Music & Entertainment |
| Recommended Uses For Product | All-Day Wearable Headphones, Ergonomic Fitness Earbuds, noise canceling earbuds with virtual bass sound, Bluetooth earbuds with ENC microphone and waterproof design, ENC Microphone Earphones, Comfortable Open-Ear Design, open ear wireless earbuds with charging case 24-hour battery, ENC Noise Canceling Headphones, Magnetic Boom Mic Earbuds, earbuds with detachable microphone for calls and music, Emerson NoiseZero Headphones, Emerson NoiseZero ES204, wireless open-ear headphones for work and gym, IPX4 Waterproof Earphones, Long Battery Life Headphones, IPX4 waterproof wireless earphones for outdoor workouts, Open Ear Wireless Earphones, Open Ear Bluetooth Headphones, Bluetooth 5.4 headphones with noise canceling mic, Over-Ear Sports Headphones, Virtual Bass Sound Earbuds, magnetic boom mic headset for meetings and gaming, Portable Charging Case Headset, Stable Bluetooth Connection, Sweatproof Running Earphones, Gym and Travel Headphones, best headphones for calls and workouts under $100, Wireless Earbuds with Detachable Mic, Bluetooth 5.4 Headphones, comfortable over-ear headphones for long wear |
| Supports Bluetooth Technology | Yes |
| Wireless Communication Technology | Bluetooth |
What Buyers Say
The main draw here is definitely the microphone's noise cancellation, which the brand claims is super effective at cutting out background noise for calls. People who need to hear what's going on around them, like when they're out running or in an office, will probably dig the open-ear design. The detachable mic is a smart move for flexibility, but don't expect these to seal out noise for *your* listening experience. The battery life looks pretty standard for this type of earphone, giving you a full workday plus some extra juice from the case.
“Look, if you're on calls all day and need people to actually hear *you* over the office chaos or street noise, this mic is probably it. But don't buy these thinking you're gonna zone out with your music, you'll hear everything around you. It's a trade-off, man.”
Common Praise
- Microphone clarity for calls in loud environments is a key selling point.
- Open-ear design allows for environmental awareness.
- Detachable boom mic offers flexibility for different uses.
- IPX4 rating makes them suitable for active use.
- Bluetooth 5.4 provides a stable connection.
Common Complaints
- Lack of true noise isolation for the listener due to open-ear design.
- Sound quality might not meet the expectations of users focused on music fidelity.
- The weight of 8.4 ounces could be noticeable during extended wear.
- The '100dB noise suppression' is only for the microphone, not for the audio you hear.
Ownership Tips
- The magnetic boom mic attachment feels secure but might get lost if not stored properly when detached.
- The open-ear design means you'll need to adjust volume more frequently in varying noise levels to hear your audio.
- The IPX4 rating is for splashes, so don't dunk them or expect full waterproofing.
- Charging case size is compact, but the overall 8.4-ounce weight is noticeable when carrying them around all day.
Frequently Asked Questions
Are these earphones suitable for exercise?
Yes, they feature an IPX4 waterproof rating, making them resistant to sweat and rain, which is suitable for workouts.
How long does the battery last?
You get up to 7 hours of playback per charge, and the included charging case extends the total listening time to 22-24 hours.
Can I use these earphones for phone calls?
Absolutely. They come with an advanced AI-powered ENC microphone designed to eliminate up to 99.999% of background noise for clear call quality.
Do these block out surrounding noise for me?
No, the open-ear design is specifically meant to keep you aware of your surroundings, so they do not block out ambient noise for the listener. The noise cancellation is for the microphone, to make your voice clearer to others.
What kind of Bluetooth do these use?
These earphones utilize Bluetooth 5.4 for stable and fast wireless connectivity.
Buying Guide
When you're looking at open-ear earphones like these, you need to understand that they're designed for a specific purpose: hearing your audio while also hearing the world around you. This is super important for safety if you're exercising outdoors or if you need to be aware of your surroundings in an office. Don't expect them to block out noise for *your* listening; their 'noise cancellation' is all about making your voice clear to others on calls.
Open-Ear Design
Unlike traditional earbuds that seal your ear canal, open-ear earphones sit outside, letting ambient sound in. This means you can listen to music or take calls and still hear traffic, conversations, or your doorbell, which is a big deal for safety and awareness.
ENC Microphone
ENC (Environmental Noise Cancellation) on the microphone means the earphones actively work to filter out background noise *before* your voice reaches the person you're talking to. Think of it like a smart filter that cleans up your voice, so they hear only you, not the dog barking or the coffee shop chatter.
IPX4 Rating
This is a measure of water resistance. IPX4 means the earphones can handle splashes of water from any direction, like sweat during a workout or light rain. It doesn't mean you can swim with them, but they'll survive your gym session or a sudden drizzle.
Alternatives
If you need complete sound isolation for immersive audio or to block out distractions, look for earphones with active noise cancellation (ANC) and an in-ear or over-ear design that creates a seal.
You Might Also Like
Beats Studio Pro - Wireless Bluetooth Noise Cancelling Headphones with USB-C Charging Cable (20 cm) - Jet Black
$150-$299A Bluetooth headphone with Active Noise Cancelling, USB-C lossless audio, and a 28-hour battery, but with reported comfort issues.
![Samsung Galaxy Buds 4 Pro (2026) AI True Wireless Bluetooth Earbuds, Hi-Res Audio, 2-Way Speaker, ANC 2.0, Optimized Comfort, IP57, Live Translation, Black [US Version, 2 Yr Warranty]](https://m.media-amazon.com/images/I/51QEHqsjzPL._AC_SL1500_.jpg)
Samsung Galaxy Buds 4 Pro (2026) AI True Wireless Bluetooth Earbuds, Hi-Res Audio, 2-Way Speaker, ANC 2.0, Optimized Comfort, IP57, Live Translation, Black [US Version, 2 Yr Warranty]
$150-$299These are 2.05-ounce true wireless earbuds with 2-way speakers and ANC 2.0, designed for Samsung ecosystem users prioritizing audio quality and adaptive noise cancellation.
Trucker Bluetooth Headset, Wireless Headsets with Noise Cancelling Microphone, Long Battery Life Bluetooth Headphones with Detachable Earpad/Single+Dual Mode for Office/Driving/Home
$0-$49A 50-hour battery life, passive noise-cancelling microphone, 13.7-ounce over-ear headset with detachable earpad for office or driving.
Logitech H390 Wired Headphones with Mic, USB-A Headset with Microphone for PC, Noise Cancelling Microphone for Video Meetings, Music, Gaming - Black
This is a 7-ounce, wired USB-A over-ear headset with a rotating noise-cancelling mic, built for basic PC communication.