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🎧 Elevate your audio game with open-ear freedom and all-day power!
The TOZO O2 True Open Ear Wireless Headphones combine a unique dual-axis adjustable design with Bluetooth 5.3 technology to deliver a customizable, comfortable fit and seamless dual-device connectivity. Featuring a powerful 14.2mm dynamic driver and TOZO’s ORIGX acoustic algorithm, these earbuds offer crystal-clear calls and rich sound with five EQ presets via the TOZO app. With an impressive 42-hour battery life and an open-ear design that promotes safety and situational awareness, the TOZO O2 is engineered for professionals and active millennials seeking premium sound without isolation.




| ASIN | B0CP5X6HWT |
| Age Range Description | ALL |
| Antenna Location | Driving, calling, everyday life, travel |
| Audio Driver Size | 14.2 Millimetres |
| Audio Driver Type | Dynamic Driver |
| Audio Latency | 55 Milliseconds |
| Battery Average Life | 42 Hours |
| Battery Charge Time | 2 Hours |
| Best Sellers Rank | 14 in Open-Ear Headphones |
| Bluetooth Range | 10 Metres |
| Bluetooth Version | 5.3 |
| Bluetooth support? | Yes |
| Box Contents | Slim charging case, possibly a wireless charging case and a cable |
| Brand | TOZO |
| Brand Name | TOZO |
| Cable Features | Without Cable |
| Carrying Case Color | Blue |
| Carrying Case Height | 2.7 Centimetres |
| Carrying Case Length | 9.3 Centimetres |
| Carrying Case Material | Acrylonitrile butadiene styrene (ABS) |
| Carrying Case Weight | 57 Grams |
| Carrying Case Width | 5.8 Centimetres |
| Colour | Blue |
| Compatible Devices | Phone, Tablet, Laptop, Computer, Smart Speaker, TV |
| Control Method | Touch |
| Control Type | Media Control, Volume Control |
| Controller Type | Touch |
| Country of Origin | China |
| Customer Package Type | Cargo box with padding or protection |
| Customer Reviews | 4.3 out of 5 stars 25,095 Reviews |
| Ear placement | Open Ear |
| Earpiece Shape | open-ear |
| Enclosure Material | Metal, Plastic, Polyurethane (PU) |
| Form factor | Open Ear |
| Frequency Range | 20Hz - 20,000Hz |
| Frequency Response | 20 KHz |
| Generation | 2 |
| Global Trade Identification Number | 06971681318989 |
| Hardware Interface | Bluetooth |
| Headphone Form Factor | Open Ear |
| Headphone Jack | No Jack |
| Headphones Ear Placement | Open Ear |
| Impedance | 16 Ohms |
| Input-Device Interface | Bluetooth |
| Is Autographed | No |
| Item Weight | 0.02 Grams |
| Manufacturer | TOZO |
| Manufacturer Part Number | T0013 |
| Model Name | tozo_open_buds |
| Model Number | O2 |
| Network Connectivity Technology | Wireless |
| Noise Control | None |
| Noise Control Features | noise-cancelling calling feature, sound isolation |
| Noise control | None |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Power Levels | 2 |
| Product Features | Noise Cancellation |
| Product Warranty | 24 Months Warranty |
| Sensitivity | 100 dB |
| Specific Uses For Product | Business, Entertainment, Fitness |
| Style Name | Contemporary |
| Total USB 2.0 Ports | 1 |
| Unit Count | 1.0 count |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology Type | Bluetooth |
Z**E
Excellent open earbuds, definitely recommended.
Excellent sound quality and balance between highs and lows, comfortable and easy to use and having the App means that you can adjust the sound quality to your own liking. I have had Tozo products before and found them reliable and affordable, this is no exception. Highly recommended.
L**W
Amazing quality for a low price
Amazing quality for a low price! I ran 14kms this morning, they linked perfectly with my Garmin watch, excellent sound quality, did not fall out of my ears (as my in-ear headphones do when I run for a long time) I could hear everything going on around me but it did not affect my listening experience. Would definitely recommend.
A**M
Good earphones with downsides.
Good quality and loud. They stay on while running just fine. Downsides are the fit, the piece on the back is pretty bulky so it won't fit everyone's ear. Also the touch button's are very awkward. No physical button, just have to double or triple tap a vague spot to pause/play or skip a track. No volume control.
ㅤ**ㅤ
Great value. So comfortable, I genuinely forget I'm whether I'm still wearing them.
Ok, so these are incredible for the price. The sound is natural and perfectly adequate - they aren't like wearing in-ear earbuds, as they can't quite match thee bass levels and you can still hear everything happening around you when wearing them (but, that's the point) They are small and very comfortable - so much so, that I often think that something has gone wrong, as they don't seem to be working, then I realise that I took them off a few hours ago. You just get used to hearing your music, plus everything else - but not really feeling that you're wearing anything - if that makes sense? The controls are 'okay'. There is no 'single tap' option, as this helps prevent accidental triggers if the earbuds touch your neck or something (a clever move if you ask me). You can change double and triple taps to do whatever you want (within reason), but there's no long pressing either, for the same reason as the lack of single tap. The quality of workmanship is excellent. The case is small, light and really pocketable. The LED display is genuinely useful and the single colour nature of the earbuds make them look unfussy - which is exactly what I wanted. So,the only thing that I'm not happy with is,... No multipoint connection! This means that I have to disconnect from my computer to use them on my phone, and visa-versa. This was because the chip inside operates at a Bluetooth standard that was before 'multipoint' became a thing. This is a shame, but not a deal-breaker at this price. If not being able to easily swap between two inputs isn't a huge issue for you, these are an incredible buy for the money. Tozo have an excellent app, with loads of AI and translation features, all in a discreet and good sounding package. Highly recommended, but I'm holding out for an updated version at a reasonable price,... (If only)
A**R
Great headphones/earbuds and great customer service too
I have another product by this company and I love them so much that when I thought I'd lost them I went straight out and bought a new pair. Yes you guessed it to find the old ones, but I now have a spare. So why did I purchase these. I tended to be a person who did not like the push into the ear type of earbuds. The N7s were comfortable and I didn't mind too much until I wanted to ride my bike. I was always worried that they would fall out and they did on occasions. So I saw these headphones/earbuds as a compromise and thought I'll give them a go. They are very comfortable and more importantly very secure on your ear when riding a bike. Another big plus is they do not cut out all ambient noise so you can hear a car coming up behind you or something similar. But I was very impressed by the sound which reminded me of when I was younger and wore headphones. I mean big headphones back in the '80s. So it's the best of both worlds something compact on your ear and secure and something with the same as using headphones. If I compare them to the other ones the N7 the different is the volume is not quite as loud if you turn up full blast which we never do. When I made an earlier mention about being able to hear traffic I didn't mean all the time only when it gets loud enough and you needed to notice it. these are my go-to headphones in all circumstances now and the others are just there for spares and link to other devices. my daughter loves the n7 and she will have a spares when she eventually will lose or they cease to work. I think the cease to work will be a long time away as they are very solid and well made. When I was looking for this type of headphones I found some a little bit cheaper but I knew the quality was there with this company. I also had a little situation after I bought them that I use the q code to register the product to get the warranty. I don't know what happened but I put in a request that something was wrong with the headphones. They responded very quickly and when I explained that I was not complaining about the headphones but I was trying to register them. They registered them and got back very quickly to confirm this. So I always say don't matter how good the product is if the customer service is crap so is the product. So that's reassuring from me and everyone who purchases this product that the customer service is there.
K**Y
The best earphones EVER!
All my life (well, at least for the past 25-35+ years) I've struggled to find headphones/earphones that are comfortable which allow me to wear glasses & hats, etc., that don't fall out (either whilst moving or sitting still at my desk) and which do not require me to keep re-adjusting them... until now! These ear ring designed ear buds are what I've been looking for... super comfortable and incredible sound. The TOKO app is feature rich... allowing you to adjust the tap controls, modify EQ settings, find my earbuds AND has really cool tools like live translate, meeting recordings, plus a water drainage feature. Bluetooth connection is good... I can move about away from my phone and/or my computer with ease and there is not issues with connections or loss of sound quality. Battery life is good so far (I've only just got these)... but I love the feature of having extra battery in the case... an added plus when you're out or away from outlets. I brought these on offer, so I may buy a 2nd pair as I'm so impressed.
H**T
Charging case major issue.
Earbuds fine but charging case has major issues. Does not recognise the earbuds are in the case and does not charge them. Still stays connected to phone Bluetooth after closing case. Happened on two separate sets so would not buy this brand again.
C**R
Poor touch controls and no volume control
The biggest problem with these open-ear earbuds is the touch controls. They are very unreliable and often simply don’t respond. When they do, you need a lot of patience to get them to do what you want. I’ve used much cheaper earbuds with far more responsive and reliable touch controls. Even more disappointing is the lack of volume control. There is no way to turn the volume up or down directly from the earbuds, so you have to use your phone or another connected device. For me, this is a pretty basic and important feature, especially at this price. Having said that, they’re not bad overall. I didn’t expect the same sound quality as regular in-ear earbuds, and I knew there wouldn’t be much bass with an open-ear design, so that wasn’t really a surprise. They are comfortable to wear, and the battery life is decent, giving me around 5–6 hours on a single charge. Overall, they’re okay, but they are quite frustrating to use. If I were buying open-ear earbuds again, I’d rather spend a bit more and get something considerably better. For me, the touch controls alone make these too irritating to use on a daily basis.
N**L
Extremely fast delivery
A good buy here!! Very pretty earbuds!!
B**N
Awesome open earbuds
That product IS awesome. Rich sound. Best value for money. Appreciate from France.
M**O
Ideali per chi pratica sport
Premetto che già possedevo altri auricolari open-ear di altra marca ed ero già soddisfatto se non che dopo circa 1 anno si sono rotte e ho dovuto restituirle, così ho deciso di acquistare queste TOZO affidandomi alle recensioni. Queste cuffie sono ideali per chi come me pratica sport (running e altro). Durante gli allenamenti di corsa non si muovono per niente, rimangono molto stabili alle orecchie considerando che le mie orecchie sono decisamente piccole e sono leggerissime. Anche se si indossano per parecchio tempo di ha la sensazione di non indossarle. La musica è nella norma di un auricolare open-ear: si sentono rumori esterni ma l’ascolto è buono, d’altro canto nascono proprio per avere contezza delle situazioni che ti circondano. In chiamata le cuffie si sentono bene e anche chi ti ascolta dall’altro lato sente abbastanza bene. La situazione però cambia se ci sono rumori tipo traffico o vento, dall’altra parte della cornetta ti sentono non proprio benissimo. Comoda la custodia con percentuale di ricarica. Ottima la durata della batteria. Conclusioni: Se decidi di acquistare questi auricolari per fare sport secondo me sono perfette, se invece le acquisti per avere chiamate cristalline allora scegli altro.
R**E
A surprisingly decent quality for a cheap price
It came smaller than it looks, perfect for a small ear size, but it has plenty of buds size choice. The casing material looks sturdy, not cheapy. Pairing between left-right buds and between the buds to iPhone 8+ is smooth. Sound quality wise: I play different music from edm, orchestra, pop funk, surprisingly the bass is well balanced! The treble is a bit too much though. Full control on volume, track skip, siri, taking calls, all by touch. Calling siri is also effortless. I haven’t monitored the battery power, but it says it can be wirelessly charged as well. You can register a longer warranty online as well. So far it is a satisfying choice given that it’s just €35!
S**P
Absolute Empfehlung
Da ich täglich stundenlang Musik und Podcasts höre, aber nicht die ganze Zeit InEar Buds tragen möchte, habe ich diese Open Buds ausprobiert. Tozo ist ja bereits seit Jahren ein Schwergewicht auf dem Markt, und diese Erfahrung merkt man auch den OpenEgo an, sowohl in Soundqualität, als auch im Handling. Hier ist einfach alles durchdacht und so bin ich das mittlerweile auch von Tozo gewöhnt. Wirklich toll ist, dass man mit der Service App von Tozo nicht nur das Handling der Buds (Tastenfunktionen), sondern auch den Klang nach Wunsch ändern kann. Android hat ja leider keinen globalen Equalizer, mit dem man App-übegreifend den Klang ändern kann (was mich schon oft geärgert hat). Das löst man mit der Tozo App ganz bequem - einfach den Klang der Buds dort nach Wunsch einstellen, die Settings werden dann in die Buds hochgeladen und der Klang bleibt permanent genau so, wie man es möchte, auch wenn die Tozo App gerade nicht läuft. Und da man die Tastenfunktionen frei anpassen kann, kann man sie auch komplett deaktivieren, so dass man nicht ständig etwas verstellt, wenn man versehentlich an die Buds fässt. So muss das sein, da sollten sich andere Hersteller mal was abgucken. Außerdem kann man mit der App ganz easy die Firmware der Buds aktualisieren, falls es mal Neuerungen geben sollte. Der Klang ist natürlich, wie von Tozo gewohnt, allererste Sahne. Schöne warme Bässe, klare Höhen. Blechern klingt hier überhaupt nichts, das Klangbild ist wirklich premium. Die Batterlaufzeit habe ich noch nicht ausreizen können, aber keine Tozos, die ich bisher hatte, liefen weniger als 3.5-4 Stunden. Das ist locker drin. Das Aufladen in der Box geht ebenfalls sehr flott. Sehr schön auch: die LED-Anzeige an der Front der Ladebox, die den aktuellen Ladestand der Box und der einzelnen Buds zeigt. Der Sitz ist perfekt, selbst beim Radeln, joggen oder bei heftigem Sport kommt man nicht mal in die Nähe der Gefahr, dass man sie verliert. Die sitzen bombig. Zu bemängeln gibt es hier nichts. Mit den OpenEgo man wirklich nichts falsch und sie sind eine perfekte Alternative für alle, die ihren Ohren mal Frischluft gönnen und nicht ständig InEars tragen möchten.
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