Ueteto Wireless in Ear Monitor System，2.4GHz Mono IEM System with Transmitter Beltpack Receiver, Plug and Play for Musicians， Studio, Band Rehearsal, Live Performance

Was looking for a low cost option-and this hit the mark!Perfect for what I was looking for without dropping a bunch of cash!

This is a great little device for musicians to work together using headsets or mics. The connectivity is easy to use and the video on the sellers page is helpful. You get a lot of value for just under $40. The quality is good since the refresh rate is quick. It is a perfect for close range use and the battery is ok if you keep it charged up before a session. I am happy with it.

These are nice, inexpensive in-ear monitors. While this product does NOT include ear phones, it works well with my wire Apple Ear Pods and I'm confident it would work with any earphones that have a standard stereo plug of the correct size. I am pleased with the audio quality. Keeping in mind the price-point of this item, I'm completely satisfied with it and think it's perfect for home practice when I don't want to disturb others. However, unlike professional level systems that cost hundreds of dollars, this system is not ruggedized so I don't think it is something I'd want to use on stage. As long as you keep that in mind, I think you'll be pleased with this item.

This is useful for listening to yourself play so you don't have to worry about outside noise, primarily if you are in a noisy environment. Its not as useful as I had thought but it is what it says it is and works as designed so not a product problem. Overall its a good product, its made of hard plastic, and it works just fine. Its not stereo but a minor issue since its just for one input, not stereo input anyway. No included headphones/airphones so you need to provide.

It does the job. The 2.4GHz wireless signal is stable enough for home or band practice, and the range is decent (20m is pretty accurate). Battery life is solid, and I like being able to see volume and battery level on the unit.That said, I wouldn’t trust it for a live performance—there’s just a little too much latency and the sound isn’t as crisp as a pro setup. Great entry-level IEM system or backup gear.

This is a pretty unimpressive in ear monitor system. Where it falls short most:1. The clip on the receiver has no spring, it's just the tension of the plastic, so that will eventually snap.2. The transmitter or receiver add in some white noise/hiss. This may be due to 16-bit audio or just poor 2.4ghz connection. I tried all 4 channels and no difference.3. Range isn't great, though thankfully accurately advertised at 20 meters. I got only about 8-10 meters semi obstructed. Unobstructed is key to getting the full range.The unit charges nicely via USB-C. Setup to get going is simple as it easily switch and pairs between channels. Wish the range were more useable and the audio quality a bit better (less white noise). This is certainly a useable system, but you should get more for $40...

First and foremost, the sound quality on this is only OK. It's an electronic for less than $50 and that's the sound quality you are getting from it. That being said, it is an EXCELLENT practice tool - especially for a bassist who lives with other people. This gives you a way to plug standard wired headphones into a wireless receiver on the guitar. This means you can play with an amplified sound just about anywhere without bothering other people. The volume is also a bit limited and gets to a pretty good volume level, but if you're trying to make your ears bleed with heavy metal, this won't get to those levels of loudness.

I find it odd that a headphones system would be mono - but if you're using it for in-ear-monitoring (IEM) there's no need for stereo and sometimes IEMs are worn in just one ear. The input being a male 1/4" TS jack (technical name is "phone" connector) is inappropriate, however, and may cause damage to users' gear because if this product is to extend a headphones output cue, that's always a stereo TRS connection (whether 1/4" or the minijack 1/8") - nobody has mono headphones anymore, so the headphone jacks are always meant to work with a stereo TRS. As noted by Tascam, when you plug a TS into a TRS powered headphone amplifier output there is a risk that it'll short out because the second channel can't connect electrically. Fortunatley a lot of modern gear is designed in such a way that it won't break - but you're still going to be missing half of your audio signal! Modern audio interfaces, computers, devices don't support mono output typically so designing it this way was a poor choice; if for cost or some other reason it was necessary to do just the one mono channel this could've been implemented OK with a TRS stereo connector for input that would simply be wired to combine both channels to a mono signal to be transmitted wirelessly. Moreover, why are they using the larger 1/4" size phone jack for the input? Consumer devices have all been using 1/8" (3.5mm) minijacks for decades now, only pro audio feeds would use the larger 1/4" connector - and those would be TRS stereo 1/4". However, the manual depicts a mixer as the output source (where the reciever connects to get the sound) and for that application this is an apt design, impressive how cheaply they pulled it off. I just doubt that most potential buyers will realize this.In use it works right out of the box. I'm not hearing obvious audio degradation, a great sign. cause they can hear the level!).