

🎧 Elevate your sound game—wireless freedom, anywhere, anytime!
The SZMDLX 3-in-1 Bluetooth 5.3 Transmitter Receiver is a compact, portable wireless audio adapter that upgrades any non-Bluetooth device with seamless Bluetooth streaming. Featuring dual TX/RX modes, a 3.5mm AUX output, and a robust 7-10 hour battery life, it’s designed for versatile use across TVs, cars, and home stereo systems. Its clip-on design and universal compatibility make it an essential gadget for professionals seeking effortless, high-quality wireless audio on the move.






| ASIN | B07VNFHDJV |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Best Sellers Rank | #407 in MP3 Player Bluetooth Transmitters |
| Customer Reviews | 3.9 3.9 out of 5 stars (410) |
| Date First Available | April 22, 2021 |
| Item Weight | 1.76 ounces |
| Item model number | SZMDLX |
| Manufacturer | SZMDLX |
| Package Dimensions | 3.66 x 2.28 x 0.98 inches |
S**M
Lasts at least 8 hours
***Update*** I have been using this for about 10 months, now. I have found that this lasts approx. 5 hours listening to Audiobooks, and 7-8 hours continuous music play. Audiobooks always seem to use more power. I would keep in mind that I work in a manufacturing plant that uses lots of radio signals that may interfere with the Bluetooth connection. This MAY be the reason for the shortened power availability. The device has to work harder to stay connected to my phone, therefore using more power. I wear this attached to the T-shirt, under my work shirt to protect it from what I work with. I have NEVER had any problem with the connection to my phone. And when my spouse calls, he can hear me quite well. Even over the din. Once the call is disconnected, it goes right back to what I am listening to. We used this by hooking up to the auxiliary port of a rental car over the holidays. No need to pair our phones with the vehicle BT. It worked like a dream. We were able to securely use it as a hands free device, as well as hear GPS directions and music over the vehicle speakers. The person on the other end of the phone had no problems hearing us. I still highly recommend this device. It has stood up to all I have thrown at it. And it is still going strong. ***End Update*** This is a great little Bluetooth. You use your own headphones or earbuds. It has a clip on the back for attaching to your clothes. And it stays put. I've been listening to audiobooks, so I'm sure it will last longer when listening to music. It also, doesn't take very long to charge back up. I plug it in when I get home from work, and it is fully charged in about 2 hours. I have reviewed many of this type of Bluetooth device over the years. I only buy them if they claim to last at least 8 hours. This one has held up it's end of the bargain, so far. I would definitely recommend this to anyone looking for a small Bluetooth with an awesome sound. ***For those who think the reviews on these sites are rigged...I pay the full list price on every item I buy here on Amazon.***
T**D
A Great Deal
This is a great little adapter. I use it with some Shure earbuds in the gym and have been impressed with the sound quality and battery life when compared to older Bluetooth modules. No idea what kind of DAC it has, but to my ears, it’s great for less than $20. I’ve used two older Bluetooth adapters like this and they were definitely inferior in range, sound quality, and battery life. The only down side is the pre recorded voice that talks to you is too loud on my headphones. All it does that I know about is tell you you have turned it in or off. Not sure if that can be adjusted or not. Thus the 4 stars.
B**D
Buy it, yolo!
I've had this product for a while now and have just now spent enough money to write a review and let me say, this product deserves it! The first one I received broke at the end and bent the circuit board and when I messaged their customer support they were super nice and sent me a working device for free. That may sound bad but I believe that first one was 1 in a million because my second one was top notch! The sound is amazing and I listen to my music LOUD and the 2 hour battery life statement couldn't be more wrong! I still have not had mine run out of battery and thats with heavy use. Just buy it it is more than what you are paying! My phones audio jack broke so I got this and it works so well with my phone and stereo system. Also with having this for a few momths I've had only about 2 split second audio drops out of many hours of use. Wish I could give it more stars because its just great! Rock on y'all!!
P**O
These things are NOT Stereo!
Theese guys will do the job, but they're NOT Stereo. If you just wanna toss a signal to something for background noise, they're okay I guess. I submitted a refund request for my 2. I bought 2 others for the same price as these, and they're actually in stereo. None of these little guys have much of a range, but there are much better ones out there. Do your home work before you jump in and get one of them. Bluetooth devices come in 3 different classes. Class 1=100m, Class 2=10m and Class 3=1m. Class 1 having the most power and Class 3, the least power. In short, the further you wanna push your signal, the more it's gonna cost you. Don't be fooled by size, as this can go both ways. Bigger isn't always better, but sometimes it helps. Also remember, as the technology gets even better, things will get smaller and probably better yet as well. 😉 Do your research!
S**N
Great alternative to Earpods!
I recently upgraded my phone to one without a physical headphone jack. My ears do not fit in most wireless earbuds. Wireless earbuds will fall out of my ears, especially working in my hot warehouse! I have exposed the adapter to cold, heat, sweat, and (Shower)moisture. The battery life is about 7.5 hours and the microphone sounds passable. The audio quality has ZERO effect on my In-Ear Monitors that I daily drive! I absolutely recommend this product over the wired dongles.
K**S
I could REALLY do without the LOW BATTERY alert...
I use this with a pair of sleep headphones. It's easy to use, sound quality is fine, battery life is roughly 7-7.5 hours which is great for using to sleep! However, if I go to bed early, I get woken up before my alarm by a voice saying very loudly "LOW BATTERY" in my ears. And usually it dies within the next minute so it's not like having the warning would give me much time to do anything if I was using this while not asleep. I really wish there were a way to disable the voice and just have the red led as a low battery notification. Update: after using it a couple months, the battery now only lasts 6 hours before the LOW BATTERY wakes me up. This no longer suits my needs and I have to go back to wired headphones. I never once had it meet the advertised 8 hours of play time and the decrease in battery life is happening far too quickly. I would not recommend this adapter for frequent use.
K**S
I was not expecting that much good device while time of ordering. But its perfect working both ways The transmitter and receiver both ranges are good. And the biggest thing is that it works while you are connected to charging, thats what i was looking for. You can make your laptop or TV to transmit sound as bluetooth to your bluetooth headphone. And you can play your mobile sound on your non bluetooth car audio player with aux option, or normal spearkers that have only aux option but no bluetooth option.
S**E
I use it to connect my phone to my car stereo. Works perfectly. The sound quality is better than expected, in fact the best i've tried so far, and i've tried a few before i stayed with this one. The only thing i don't like, is the small battery in it, but it's still not bad at all considering the capacity of it. Works great as a receiver, and aslo as a transmitter. Highly recommended product. :)
M**J
recommended Bluetooth transmitter ! easy connect ! sound perfect ! worth it !!!
D**E
Edit!!!!! Once again another Chineese device without function. Wont connect to Samsung S20 ultra. Sending back. I am getting Tied of low quality stuff out of China, which seems to dominate the market with such rubbish. Ahem... I take back all of the above. Apparently one must first read the instructions booklet. There is a small switch on the side. I switched the setting and it works perfect. Good sound via Bluetooth to car radio via aux 3.5 cable. After wiping the foam from my mouth, and dabbing away the tears of frustration, I finally succumbed to having to rummage in the box for the instructions booklet. The extreme tiny writing was photographed, and expander 50 times on pc, and the words revealed my mistake. I will see how long it lasts, before buying another for my truck.
S**E
Pro: - Sehr klein, leicht, kompakt - Top Akkulaufzeit - Stabile Verbindung - Guter Klang - Gute Reichweite - Top Preis Leistung - Koppelt leicht und zuverlässig, auch automatisch Con: - Vermurkste Fernbedienung Die Knöpfe sind sehr berührungsempfindlich. Versehentliche Betätigung kommt vor, wenn man nicht aufpasst. Lautstärkeregelung sehr schlecht gelöst. Schade, ist ein reines Software-Problem. Audio Aufzeichnung oder Gespräche in der Praxis nicht möglich, da man das Teil natürlich in die Tasche steckt und das Mikro dort viel zu weit weg ist. Vor dem Sprechen / Aufnehmen muss man erstmal BT oder das Gerät ausschalten. Ist etwas umständlich. Trotz der Cons finde ich das Teil sehr brauchbar.
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