UDISON Portable Wireless Bluetooth 5.0 Speaker with 10W Loud Stereo and Rich Bass, 100 ft Wireless Range, 12-Hour Playtime, Built-in Mic, TF Slot, Perfect Outdoor Speakers

I bought this because it was on sale and looked neat and I like the color. I had no idea I'd be blown away by the sound of how loud it was, and the fact that it really feels a room with music. The Sound was wonderful and very clear, even when it was turned all the way up. I let it play one day even while I left my home, and it kept playing and I counted and it played for almost the 10 full hours that was promised, even though I had lost some charge before I started playing it in the first place. The battery on this last for a long time and it's worth every dime I paid for it, so I went ahead and bought another one like it :-)

Honestly, what did I expect out of a $10 speaker. Sound quality is HORRENDOUSLY BAD!!! Being barely able to handle a simple piano song without an irritating scratchy background noise. I have to turn the sound all the way down to the point of not having sound at all to be able to hear my music clearly. Any notch higher than that and it sounds worse than nails on a chalkboard. I Charged it for nearly 7 hours and still didn't charge all the way to 100%. Even though the instruction manual said it should only take 3 to 5 hours to fully charge, mine spent seven and got to 80% with the plug it came with. I could have went to five below spent $5 less and got a much better speaker. Would not recommend. Waste of money.

Lot of sound out of little speaker.

Update 12/14: I discovered the port in the back that allows for a memory stick to be inserted did not work. The sound quality had become very tinny. Customer service was great and replaced my blue speaker with a black speaker. The black speaker is a DRASTIC improvement. It quietly connects, and has good music quality. Perhaps the black speaker is the newest version? Anyways, the company has very friendly customer service and I was happy that they replaced the old speaker.Original review: So I'm not really knowledgeable in the specifics of sound quality and so on. I'm just a regular person who ripped out the stereo in her truck and needed an alternative. So, if you want a more professional opinion, mine isn't going to cut it. Personally, it has a decent enough sound. The quality gets kind of bad about three presses from the max on my phone. It is well heard in the third row seat of my truck while on the highway. It fits nicely in the empty space where my stereo once was. The battery life isn't too bad, I wouldn't say it's all what the manufacturer claims, but maybe ten or eleven hours. It charges pretty quickly too, so that's a bonus. It's heavy, and it looks nice enough.It does have a few drawbacks for me. One, after the third time I used it, it stopped automatically connecting to my phone. This isn't a big deal. But it might be for someone else, which is why I bring it up. When you turn it on, it is very loud. It announces it is waiting for bluetooth signal. Loudly. Not an issue in the truck, but it was when I used it to play sleep music for my two little ones. And when you turn it off, it is also loud. My only other thing that bothers me, and that IS sort of annoying for me, is the blinking blue light while it's on. This bothers me for night driving, and it's super annoying at night if I'm playing sleep music. Even covering it up it was still pretty bright.All in all, it's a good little speaker. But I don't have anything to compare it to except a cheap ten dollar speaker from WAlly world, so take my opinion with a grain of salt. I am considering buying a different speaker for inside use, and leaving this one in my truck, which would make sense. Knowing what I know now about the little annoying things for inside use, I probably wouldn't buy this again though.

The media could not be loaded.  UPDATED 10/30/2020: As many people mention, if you complain to Udison or post a negative review, their customer service is impressively diligent about replacing detectives products.So now I have a working speaker. If you factor in the inexpensive price, it is perfectly fine. I get serious distortion if I go over 85% volume, but overall, I am happy with it.So if you're in the market for a cost-effective Bluetooth speaker, and if you happen to be in the X% of people who get a DOA speaker, and you don't mind having to complain, email, or call Udison, this might be your best choice.Original review:If you want a Bluetooth paperweight, get this, but if you want an actual WORKING speaker, look elsewhere. The first one I ordered worked but sounded as if a speaker diaphragm was broken. It raddled. I asked Amazon for a replacement and was promptly sent one.Unfortunately, the replacement speaker will not turn on at all. I charged it for over 24 hrs, with different cables in different USB ports and chargers. In each case, the light is red but never changes. When I unplug the charging cable it does nothing. It will not even play with the AUX cable and power cable. It seems completely dead.I bought a Bluetooth enabled paperweight.