U4 Wireless in-Ear Monitor System Professional IEM System Transmitter and Beltpack Receiver for Studio, Band Rehearsal,Live Performance (U4)

Absolutely very good product

I love these units. I have 5 of them. Sturdy built. Easy to swap channels if you encounter and interference. Usually there is one channel with some static but that's to be expected running multiple units with lots of surrounding wifi but it's easier fixed. I run 5 units usually on 3 to 5 different channels. I find signal dropout at lower volumes but its rarely an issue. Belt clip is metal and firm. Battery life is great. I would recommend charging after 3 hours use. The stronger the battery the stronger the signal. Fully recommended for stage and practice. My only complaint is the transmitter is a little wide at the base. This makes it difficult to plug into for mixers or consoles that have aux ports too close together. I have a small 6' wired adapter for transmitters that would fall in the middle of 3 units. Not a deal breaker. Fully recommended. Worth the price.

I've been enjoying these iems for almost a week now, and I've finally figured out my thoughts enough to review it. Firstly, this iem is super easy to drive, and gets to hearing damage levels of volume very easily. So no matter what source you're using, volume shouldn't be an issue. The build quality is just ridiculous. Absolutely stunning! This level of resin build quality is usually found in iems much more expensive! Take a look at the pictures in this review, I'm truly blown away by the look, feel, and build quality on these! The included cable is good enough, but I'm a little crazy and swapped it with a yinyoo cable anyway! The included tips fit fine, but I actually found them to hurt the sound quality. These actually have a somewhat claustrophobic sound with the stock tips, and was improved massively when using different tips. I ended up using TRN T eartips, and it sounded so much better! The sound signature is definitely best described as L shaped. The bass is very prominent, and takes the mainstage. Thankfully, this has to be one of my favorite implementations of balanced armature bass I've heard. More specifically, the bass is extremely tight, and slams unexpectedly hard. The subbass is also impressive, maintaining extension and rumble even down to around 10hz. Very impressive, especially for a balanced armature!! The midrange is decent, but in general the whole midrange is overshadowed slightly by the bass. The midrange is generally soft, and non fatiguing. Vocals sound fairly good, especially female vocals in genres like Jpop. Instrument separation is also good! The only real concern is, the timbre isn't quite as natural as some other iems in the price range. The treble is another story. Well executed! Non fatiguing, and provides great detail. It doesn't do anything wrong in particular, and is generally enjoyable. My only real complaint, is that extension could be slightly better. The soundstage is fairly good as well (after changing tips). I wouldn't recommend this to anyone looking for a "reference" sound. I think this iem is well suited to someone looking for an enjoyable listen with a focus on bass. I'm guilty of listening to these for hours on end! This set has a place in my collection!

These work great. As long as you don't need multiple personalized mixes, this is a cheap and easy way to get IEMs for your band. Low latency, good volume, long battery.

Fonctionne très bien et très impressionnant

These work well. The clarity of the headphones is good quality is just okay but for the price its a good purchase