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HOW TO USE
This is a SINGLE EAR bluetooth earbud, so you can listen to your surroundings with the other ear. Based on the operation guide steps, the wireless earbud can easily and quickly connect with smartphones, tablets and other Bluetooth devices.
Pairing Steps:
• Press the earbud button 1-2 seconds to turn on it
(voice prompt: ‘power on’, indicator flashes red and blue alternately)
• Search name "J18" with your phone and connect
(voice prompt: ‘power off’, no flash after paired)
Microphone Volume Adjustment Methods
• Connect the earbud with your phone by bluetooth
• Adjust the phone volume itself to the max
• Go to the phone page 'Setting'>'Sound&vibration'>'Volume' to adjust the proper volume for call/music/AI voice. If your phone has 'sound booster', turn on it, which helps the bluetooth earbud hear more clearly.
• Please check if your cell phone disable the microphone. some brands of cell phones prohibit the microphone bluetooth function turned on automatically, you need manually turn it on at the first time using.
If you have any question for the earbud operation, you could find the solution at the backside of the product package and user manual, or please ask us for a complete FAQ guidance of Bluetooth Headphone, you can find the solution finally!
How to Know If the Earbud Size Fit You
- Please measure and refer to the size of the similar earbud and ear caps you are using
- Check the size of NVAHVA J18 earbuds and ear caps and see if NVAHVA J18 fit you
- If the size fit you, judge if you like in-ear wearing style and wearing habits
Long Battery Life
- Up to 10 Hrs music time
- Up to 10 Hrs talking time
- Up to 300 Hrs standby time
The using time is floating in reasonable range, due to different using ways.
Wearing Steps
- The design is suitable for L and R ears
- S/M/L 3 size ear caps available
- Wear direction: button up, hidden in ear
Connection with 2 Phones
- Pair with phone 1
- Turn off BT of phone 1
- Pair with phone 2
- Turn on BT of phone 1
It's connected with 2 phones
Battery Level Display
- Battery level display on your phone
- Low battery voice notification
- 2 Hrs charging time
How to Insert Cable
- Open charging port cover
- Ensure the cable front side to earbud charging front side, and cable back side to earbud charging back side
- Insert cable into the bluetooth earpiece to charge
Wide Compatibility With Smart Devices
- Compatible with smart device built-in bluetooth function, like phone, pad, tv etc
alexandra boucher
2025-08-05 11:40:35
I have so many different earbuds but I find myself returning to the single earbuds again and again, bc I like to be able to hear what's going on around me while listening to something. I'm fortunate that I can listen to stuff at work most of the time, but I also need to be able to quickly turn off whatever I'm listening to when someone is speaking to me, and I find that the double ear buds (even with "ambient sound" on) make that difficult. I bought this earbud after the one I had been using finally died after like 4 years of pretty much continuous use. I wasn't able to find the brand I had before, so I tried this one. The battery life is AMAZING. I usually put the earbud in at between 7 and 8 am and listen (on and off) to something for the whole day, into the late evening. I have not yet run out of battery on the first day - in fact, most of the time, the earbud is still at like 70% battery even after listening to it all day! I can use it for 2 days in a row without charging most of the time! It fits snugly in my ear and comes with several different tips so you can find the right one for you. Pairing is pretty easy and the on/off button is large so it's easy to press when I need to quickly turn it off. I don't love the micro USB charging, my last earbud had a magnetic base to charge on that I liked better, but it's okay, and the cap to the port tucks away nicely. Sound quality is fine, I mostly listen to podcasts/news so I'm not looking for a fantastic sound experience. If I'm listening to music, I go with the double earbuds anyway. It works well for phone calls, I haven't had anyone complain that they can't hear me clearly when using it for phone calls.All in all, it's a great single ear option if that's what you're looking for.
Trentz
2025-07-23 10:45:05
I am always trying out earbuds for sleeping. It has to play my sleep stories and sounds for the entire night. Imagine my shock when this one unit delivered 3 full nights of play. It still had charge left but I didn't want to take a chance.There is no app to disable the button, but isn't a touch button, you have to click it. It is recessed and you will not accidentally click it in your sleep.It is also just one headphone and there is no charging case. They are cheap enough that I just bought another one and keep it chargedThese are just what I needed to sleep.,
Customer
2025-06-29 17:24:53
A little bit difficult to fit because of battery size, but worth it for life of charge.Pretty good sound quality.
Tammi
2025-06-07 14:07:03
Not the same as before !! It’s larger and falls out plus it is not the magnetic charger like before, it’s hard to plug in and you can’t get the charging port cover back on, the sound quality is also horrible .. this product is not the same and I don’t like it at all .. very disappointed !!!!
PJR
2025-05-26 14:12:28
Not much else to say. I lose these things all the time. A dog ate my last one. I usually get something that has a magnetic charging dock, or a "battery box" you can keep it charged up in. This one just comes with a short cable, and you plug it in to re-charge. I'm too old for these tiny plugs, I can't see well enough to tell which side is up, and if you force it, you can damage it. Battery life is good, though. I was able to go three days on a charge--I don't leave it on all the time, only when I'm using it. Sounds clear enough, I guess. My hearing is great, it's the vision that's leaving me.
Lifelong Book Lover
2025-05-05 13:06:01
I LOVE these! I've paid a lot more for earbuds and just don't use them after getting these. I've bought several of these. I like to use single earbuds instead of pairs so I can listen to books or videos and still have full access to the ambient sounds around me. Volume is GREAT - I can hear my content while vacuuming!I also listen to music. I don't have a particular need for the perfect music sound; I'm a musician. The notes matter more to me. I don't expect the sound of a perfect concert or studio performance with perfect timbre from these earbuds. I'm here for the notes - for the counterpoint, the harmonies. So these are perfect for my needs.I like to play soothing sounds overnight for sleep, so the batteries are important to me. These last a shocking amount of time. Maybe 12-18 hours? I'm not sure - but it's a very, very long time. I get up in the morning and keep listening for hours. I should pay attention to the time.Because they are so cheap, it's not a catastrophe if you lose one. I have lots of different earbuds - these are the ones I use all the time.
Randy Bell
2025-05-03 11:27:05
I purchased this earbud March of 2022 and it's working! I use it to listen to IHeart on my phone at work, I work a 9 hr shift. Most earbuds would quit after 8 hours, these are still going strong! They sound great, the Bluetooth connection has a decent range from the phone!
kristy mh
2025-04-26 10:16:15
This mono earbud fits comfortably in your ear without easily falling out. I actually use it to fall asleep. I also wear it at work where I need to also be aware of my surroundings. Gives complete sound from one bud. The battery life lasts almost 24 hours. My apples only last about 4. They last about 18 months before I have to replace them. Great Buy!
GERARDO
2025-04-23 11:52:26
Excelente producto, cumple con la descripción, audio claro y excelente volumen, micrófono excelente, totalmente recomendable.
PD
2025-04-01 21:18:08
Really like this unit for listening to my podcasts, but its painful to get the charge cable in, due to the positioning of the charge port cover. Having said that one charge last a very long time. Sound quality (for podcasts) is well above expectations for the price.
Cliente de
2025-02-27 16:38:18
Muy buena calidad para el precio, el sonido es muy nÃtido y son muy ligeros, el tamaño “No es pequeño†es de tamaño normal, pero para el precio que tienen la verdad pues si convienen
Neal
2025-02-14 19:48:50
Not sure why I bought this.
enl
2025-01-08 15:59:33
Duraron una carga, a la segunda se quemaron.
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