SINOBAND S400S Waterproof Power Bank Bluetooth Speaker with Microphone, Portable Outdoor Wireless Stereo Speaker with Upgraded 10 Watt NdFeB Drivers Deliver Superior Acoustic Feast, Bluetooth CSR 4.0 with NFC Function Compatible with Your Cellphone, Tablets, Pads, and All Other Bluetooth-enabled Devices, New Upgraded Powerful 7000mAh Polymer Li-ion Battery, 3.5mm Aux-in for Your Mp3 Player, Computer, Etc. With FREE Quality Custom Made Pouch Carry Case

My speaker came with an aux cord and usb cord in order to charge the speaker and plug in an mp3 player as well as a micro-fiber pouch that I can put the speaker in, which was a nice surprise.The speaker itself is absolutely perfect for me. It's nice and small, yet packs a punch. When I play songs with heavy bass and pump up the volume, the speaker actually moves around on my desk if I lay it down. My songs come in crystal clear even though it's all wireless. Speaking of wires, this handy little speaker also charges my phone thanks to its convenient power bank on the opposite side of the controls! i just plug my charger into the usb port, hit the little red button with the lightning bolt, and tadah! My phone starts to charge while the lights on the speaker indicte how much power is left in the speaker. Due to the blue-tooth connectivity, I can also answer my phone and talk to the person all through the speaker which just adds to the convenience of it.Overall, this speaker has exceeded my expectations for it. The sound is great, the bass on this thing can get crazy, and the sound is much better than playing music through my phone or laptop. I've had it playing music and charge my phone, sometimes at the same time, since I bought it and I still haven't had to charge it up. It's rectangle design also lets me set it down in any position without sacrificing sounds quality at all. I bought this speaker wondering how well it would hold up to my expectations, and I can say that I'm extremely happy that I bought this.

There aren't enough adjectives to describe just how good this speaker is!! I've read all the reviews and the ones that aren't satisfied may have received a defective product, but could have contacted the seller and got a replacement. The 5 star reviews are correct in my opinion, I've never heard such a well balanced sound from a speaker in this price range.TOP TO BOTTOM, the sound is as close to perfect as anything under $100!I'm a 72 year old retired professional studio musician and I'm not usually that impressed with inexpensive speakers but this product rivals the familiar names that cost several hundred dollars." ALSO" this speaker screams quality. I'ts very durable, water resistant and you can take it many places you would not feel comfortable taking a 3 or 4 hundred dollar "expensive" speaker. It's not really small enough to put in your pants pocket and it is a little heavy because of the "large batt,", but , unlike most, if not all speakers with batt's big enough to charge your cell phone, this has 4 led's to show you how much batt life is left, very important, I think. I could keep going but for this price you really should give this speaker a try, if it didn't sound great I wouldn't review it or tell you to buy it. OH, and by the way, the seller was so nice to give me this for a CHRISTMAS present. THANKS AGAIN JOYCE--REALLY GREAT SPEAKER!!

Absolutely love this speaker! The design is pretty straightforward, similar to others on the market. The soft rubber covering offers some decent shock protection if dropped. This unit cannot be completely submerged. However, it performs fine in the shower with no indication of water entry, which is all the water protection I need.Where I feel this little unit shines is the sound quality and the battery life. I've compared this unit to a number of more expensive brand name units. The SinoBand S400s sounds as good if not better IMO. It has plenty of volume, and the lows/highs are very good for a waterproof speaker of this size.The battery life is stellar. Hours and hours of use, including charging my phone off it a couple of times, and the charge indicator still shows above 75%.For the price and performance, this speaker was a good buy. Very happy with it.

I received the speaker with excitement for an upcoming river float trip with friends. I chose this speaker based on its ability to be water proof (IPX5), and its claim to have a 20+ hour battery life. As soon as I received it, I immediately charged the speaker for 12+ hours as recommended per instructions. I powered up the device, and connected my phone, as how I would on the trip. Everything seemed to work the way it should. Because I wanted everything to work just perfectly with no issues, I wanted to make sure that the speaker had a full charge; I reconnected it to the charger and let it charge for another 8hrs while I was at work. Came home, checked everything again, before leaving for my trip, and it seemed to work perfect. I turned off the speaker, and packed it away. Less than 10hrs later, arrived at my location ready to use the speaker, turns on, and seems everything is good to go. Connect my phone, and music plays for about 30 seconds and dies. I immediately check the battery meter, and it shows nothing. I immediately thought; it must have got turned on in my bag. Well, even if that was the scenario, the speaker claims to have a 20+ hour battery life. Immediately, everyone in my group was disappointed because we now were going to float 12 miles on the river with no good tunes to listen to. I then of course felt bad, because I was the one that said I would take care of the music for the trip. Of course, as soon as I got home, I tried to charge the speaker again, and it still appears that it does not want to keep a charge.So to SINOBAND, thanks for allowing me to disappoint 10 other people and starting off my trip frustrated. And to Budweiser, thank you for helping ease the frustration cause from SINOBAND!

There were some initial shipping issues which the vendor took care of.As for the speaker itself, it is of solid construction, good base and reasonably loud. The speaker phone functionality is quite clear and does a good job of filtering out background noise. I am happy with the purchase. We had a 2 day power failure and I used this device to charge my phone and tablet, and it worked great as a battery charge pack.The only negative I have about this product is it sometimes has to be re-paired with phones/tablets when switching devices. I have multiple tablets and a phone. I have paired it with all of them. I find when I switch from one to another, typically from the tablet I have been using to my phone, sometimes I have to re-pair the device. I am unclear if this is the bluetooth stack on the phone/tablet or the speaker.

So far, so amazing! Comes fully charged, beautiful packaging, great great loud sound. Other then it's sleek cool looks, im also pleased with its rubbery surrounding. Saving it from bouncing all over my table from the base. Plan to take it out on my boat regularly. Waterproof is welcome, of course (not that I plan to soak it) but it's ability to charge other devices with some of its 20 hr battery life is an extra bonus!Thank you Sinoband! Looking forward to the rest of my summer outside with great tunes!Off to make the greatest mix tape to go along with it! '

It is a verset nice speaker. The battery lifetime has not been 20 hours, but it might be because of the cold weather (brought it in the bag while snowboarding). Else, I love it.

Battery is great. Sound could be better but overall it is a nice unit.