

🎧 Hear More, Miss Less — The Open-Ear Revolution for the On-the-Go Pro
The Monster Open Ear AC210 headphones combine cutting-edge open-ear design with powerful dual 12mm dynamic drivers and beryllium diaphragms for immersive 360° sound. Featuring Bluetooth 5.4 connectivity, IPX5 water resistance, and up to 30 hours of playback with a fast Type-C charging case, these earbuds deliver comfort, safety, and long-lasting performance ideal for active professionals who demand both awareness and audio excellence.


















| ASIN | B0D8BM2K6J |
| Age Range Description | All |
| Antenna Location | Music, Calling |
| Audio Driver Size | 12 Millimeters |
| Audio Driver Type | Dynamic Driver |
| Battery Average Life | 30 Hours |
| Battery Charge Time | 6 Hours |
| Best Sellers Rank | #18,707 in Electronics ( See Top 100 in Electronics ) #246 in Open-Ear Headphones |
| Bluetooth Range | 10 Meters |
| Bluetooth Version | 5.0 |
| Brand | Monster |
| Brand Name | Monster |
| Built-In Media | Wireless Charging Case |
| Cable Features | Without Cable |
| Carrying Case Color | White |
| Carrying Case Material | Plastic |
| Color | White |
| Compatible Devices | Bluetooth-enabled devices |
| Connectivity Technology | Wireless |
| Control Method | Touch |
| Control Type | Touch Control |
| Customer Reviews | 4.0 out of 5 stars 761 Reviews |
| Ear Placement | Open Ear |
| Earpiece Shape | Open-ear |
| Enclosure Material | Silicone |
| Form Factor | Open Ear |
| Frequency Range | 20 Hz - 20,000 Hz |
| Headphone Folding Features | Open Ear |
| Headphone Jack | No Jack |
| Headphones Ear Placement | Open Ear |
| Impedance | 3 Ohms |
| Is Autographed | No |
| Item Weight | 0.16 Kilograms |
| Manufacturer | Monster |
| Model Name | Monster Open Ear AC210 |
| Model Number | Monster Open Ear AC210 |
| Noise Control | None |
| Number of Items | 1 |
| Specific Uses For Product | Entertainment |
| Style Name | E29white |
| UPC | 810079701759 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |
| Wireless Technology | Bluetooth |
A**.
Best open ear headphones I have ever owned
I absolutely love these headphones! I do a lot of running, especially on trails where it’s important that I hear my surroundings. These are light, sound good, and stay in place.
T**Y
Fantastic!!
For someone who has struggled finding ear buds that fit them well, I wanted to try ones that wrapped around my ear more for a better fit, and ooh boy these did not disappoint. They have the same if not better sound quality and volume as ear buds that sit in your ear. The battery has always lasted me the desired time. (Although I don't use them for extended amounts of time, just a few hours here and there.) The functions are easy to use while wearing them. Overall, these ear buds are a great quality for a relatively low price and are extremely comfortable to wear. :)
P**M
Great sound quality and comfortable to wear
These sound really good. I can't stand the feeling of earbuds that go inside your ears and sometimes my regular headphones get too hot or slip off if I'm too active. Ive used these to meditate, while walking and while cleaning and so far they've stayed put everytime. Just fyi, because they don't go into the ear you will hear outside noises but I don't mind this. The only reason I didn't give 5 stars is because any time I accidentally touch them or try to readjust, they shut off. This is because you can tap them to shut them off, but this feature isn't really necessary since they automatically shut of when you put them in the charging case. You're supposed to be able to tap them on also, but that doesn't always work so I usually just put them back in the case for a few seconds then pull them back out (they turn on automatically when removed from the case).
M**S
Good quality, great for the price!
I have been using these for months now. Great sounds quality and still allow me to hear my surroundings to hear my kids. Good bang for your buck. Would definite recommend to a friend. Bluetooth doesn't reach as far as my Bose headphones but I just put my phone in my pocket and it's no problem.
E**C
Absolutely love them!.. when they work
These are so incredibly comfortable! I love not worring about my earbud falling out of my ear, and I love the open ear concept as well. Phone call quality seems to be very good, I've had no issues with people being able to hear me. The ear buds do not hold an 8 hour charge. I usually have one earbud on, then when that gets to 10% (you can NOT ignore the low battery alerts!), I switch it for the other one. In an 8 hour shift, if I am listening to something nonstop, I have to switch earbuds twice. When I am wearing both earbuds, it is very common for the sound to cut out in one bud then come back randomly, creating an inconsistent sound quality. One of my earbuds will not lay flat in the case, so I have to close the case for it to turn it off or charge it, which isn't that big of a deal, but I have no issues with the other one. Even with the inconsistencies, I would buy these again.
C**Y
So many problems after a few months of moderate use.
This would have originally been a 5 star review, but these headphones have barely lasted 6 months. The first problem to appear was inconsistent charging; I brushed the contacts clean but that doesn't change the fact that sometimes the earbuds just don't charge and sometimes they start charging and then stop well before they are fully charged. The next problem arose when the earbuds started dropping the bluetooth connection. One moment you'd be listening to something and the next moment it would be silence. Only putting the earbuds on the charger (if it recognized the charge) and then taking them back off to reconnect to the computer would restore the connection. The latest problem is a drop in audio quality. What was the earbuds strong point is now too poor to listen to, with crackling at medium-high volumes. This is independent of the source of the audio, it's coming from some sort of speaker degradation of the sound with the earbud. I don't know if this model is just this bad in general or if I got one that somehow squeaked past quality control, but these earbuds are now unbearable and it's barely been more than 6 months.
D**S
Comfortable and ease to wear
Ease to use and comfortable to wear. I use these when in the office, the sound is good and I am still able to hear coworkers.
E**D
Not so great Monster ear phones
So I purchased these with high hopes of comfort and sound quality. Well its hard to give it a better review. At first they felt comfortable around my ear. But with long time wearing i began to get ear fatigue. Not as bad as Ipods. The sound quality for these is ok at best. The low frequencies (bass) would vibrate the headphones. So cant listen to upper volumes. When i got them out of the box. I placed them onto the charger. Wanted them to be at 100%. At first they would hold charge for 6-7 hrs but now they dont even hold 4hrs charge. No way you can get a full days worth of use. Even worse for all day travel. Not sure if they get better with different models from Monster. For the price I did expect a little bit more from them. I travel a lot. So i will continue to look for better phones. I tried to send them back but navigating the Monster Website is a fail for support. I tried sending an email but no response.
Trustpilot
Hace 3 semanas
Hace 2 semanas