POWKER Bluetooth V4.0 Wireless Stereo Waterproof Outdoor Shower Speaker,20 Hours Play Time with USB Power Output (Black)

This product has been very useful so far. I am writing this review three days after its delivery. So far its been useful. When I play music via Bluetooth, it's loud and clear. Abd for 40 bucks, it's loud enough. Also I like the sim card and flash light feature. One of the things that I like the most is the battery life. I've been using this for three days now and I still haven't had to charge. It played music for 10 hours straight and still hasn't died. Good produck for the price.

The sound coming out of this thing is great and the charging station and flashlight will likely come in handy. I wanted something that I could take with my on the Disc Golf course and get in the zone with. The biggest selling point was the waterproof multipurpose use and the fact that it takes a TF card so I don't always have to kill my phone battery and data via streaming Bluetooth.I haven't tried the TF card slot out yet but its loud enough that I actually had to turn it down on a few occasions because it was simply just too loud from the zippered mesh pocket under the lid of my disc golf bag. My only complaints about this unit is that its kind of bulky and awkward and the strap that comes with it pretty awful. I wish there was a ring that I could hook a carabiner to instead of the tiny little eyelet for the crappy strap that has a silver heart on the super flimsy and doomed-to-eventually-break, thin, threadlike "wrap" that the strap connects to. But all in all I feel good about this buy overall thus far.I have not yet put a charge to it at all since taking it out of the box and was able to play 36 holes of some pretty brutal disc golf and its still showing well over half a charge. So that is telling me that the 20 hours of playtime is probably truth in advertising. I had a smaller unit that didn't sound as good that lasted much longer though. Considering that its also a power brick for charging phones, etc, and its sheer size I would have thought it might be more battery life than that, but 20 hours is still pretty good. For me, that's probably about 2-3 weeks of use before it'll need charged up again. I can totally live with that.

Have had this unit less than 2 months and now it shuts itself off. I can only think it is getting hot and when it cools off it starts working again. This is a change to my original review that follows. Amazing sound for a small unit. Lasts quite a while on a charge and hooks up easily on bluetooth. Haven't used the other features, such as charging another device with the 4000 mah internal battery, led flashlight, or went swimming with it. I use it with a music service. Don't know if I can mention names, so I didn't. 5 stars for me.

WARNING __ I bought 3 separate units and they all have Bluetooth connectivity issues, clicking and popping sounds at higher volume, really noticeable while on the phone.SO I bought one unit for a work trip I have coming up. I mean whats not to like Bluetooth, power-bank, flashlight and waterproof.Bluetooth will connect fine to some phones and not other, my S4 no luck, an old s3 connected, connected to s6 but dropped connection. This was on the first unit. I was going to send it back because of the popping at high end but the Bluetooth made is unusable.So i figured its going back and I was going to buy another so way not try out the waterproofing. BIG MISTAKE: This this is Not waterproof!The waterproofing was my #1 need for the trip. One it was wet it would not stay connected to any phone.So I figured I would double down and buy two. Maybe i just got a bad unit.The new unites arrived and nether one would stay connected to my s4 they connect for about 2 seconds and then disconnect. Super frustrating.But what can I expect the packaging had misspellings. I bought this (twice) because of all the good reviews, well I guess I could consider it three times.No before anyone comments on user error. I have several Bluetooth devices and I can build my own computer so... I figure I can make a speaker work. And I did get it connected, but the speaker kept disconnecting.I don't normally write bad review but I truly feel this product earned the one star.

I bought this based on the wonderful reviews. It seemed that nobody had anything negative to say about it. So I figured I would write a review based on my experience so that others can make an informed decision. The speaker is very loud and has great battery life, it played music all day while I was working in the garage. I have a few complaints, there is an audible whine from the speaker when it is connected via Bluetooth. It was too loud to ignore and affected the sound quality, it went away completely when using the aux corded that was included. The reason I returned it: the Bluetooth connection would fail anytime I receive or sent a text message! I spent more time trying to reconnect the darn thing than I did listening to my music. Eventually, I just connected with the aux cord and quit trying to use the speaker via Bluetooth connection. But that kind of defeats the purpose of a Bluetooth speaker if you can't have your phone in your pocket while the speaker is playing. It took some playing around to see what was causing it to disconnect but as time went on it was obvious. The connection would remain while I was very far away so that is a plus but even when the phone was right next to the speaker, if I got a text the music cut off and I would have to reconnect to start playing again. I did have my Apple Watch connected to the phone via Bluetooth as well but that shouldn't matter. I have Bluetooth headphones that work perfectly fine whilst the Apple Watch and the headphones are connected via Bluetooth. Maybe I got a defective product but it wasn't worth it to replace and start over, I will just look for a better speaker. If you don't mind using the aux cable, or you don't receive or send text messages while you listen to music, then you will really like this speaker.