Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: is the battery really 20 hours and how is the sound quality?
Document: really like this one, amazing touch feeling, solid design, outstanding sound quality, 15-20 hours playback time. Small body delivers astonishing music for an affordable price! Strongly recommended. after I received anker mp141, the next day I returned the bluetooth speaker branded with Lepow which I bought last week.
Just received this  black speaker this morning and this thing is loud! As soon i turn it on and plug it to my phone, i couldn't believe the sound is coming from this little speaker. I love how it is 20 hours of battery life! The only downside to this speaker is the Bluetooth. It will usually disconnected all of a sudden when your like 20 feet away but that doesn't really happen I just use the aux cord if it doesn't work well. Other than that, this speaker is a go!
I really love this speaker and everyone gets shocked at how loud and clear the sound is! fills up the entire shop with music. i love it! Battery lasts for 20 hours when you first use it, and drops to about 15 hours after a full 2 weeks of use. Which is still great because its also light!Ankers customer service is amazing as well. they are very prompt and stand behind their product 100%. My speaker stopped working after a couple months and they replaced it with no problems.
great sound from this little bad boy. has a physical on off switch which is great to maximize battery life - I'm getting approx 22 hours of continuous play from this without requiring a charge - better than the 20 advertised. Awesome Anker quality and styling! I would highly recommend it over comparable BT speakers.
This is very Fancy Look Product! Also sound quality is Excellent than other cheap speakers! I am using this speaker to my bathroom and the bed room. The quality of the music output is GREAT! No distortion sounds and also very clear sound reproduction!Specially the battery life is awesome... I used this in a 75% volume level around 20 hours after one fully charged.
So, when I saw the Anker MP141 for $40, I was wondering how different it could be from the mini Jambox. I decided to buy it and see.Two things attracted me to the MP141. First, its sound quality Is supposed to be excellent with good bass. Second, it has the longest battery life of any speaker on the market, i.e 20 hours. Both claims appear to be true. The sound has much better bass and louder than the mini jambox.
Nasty and unpleasing. Otherwise, I really like the cube design because it fits well in the hand, small places, and my gear bag. Perfect size, design, and weight even though it's packing a pretty large rechargeable battery that you can't see. That's fine with me since I'm able to receive 20 hours of playtime with a single charge but since I don't listen to music that long in one setting I'm actually receiving about three days worth of music with heavy use.
Also, I had charged the device once, fully, and it has not died since. I've been playing it for about 12 hours, so it really does last long.Pros:&#8226; Excellent Sound Quality&#8226; Long Battery Life&#8226; Great Portability&#8226; Looks AmazingCons:&#8226; NoneI absolutely love this Bluetooth speaker. It really saves a lot of time with the mobile technology of just hooking up your phone with Bluetooth to play music wherever you are.
So I purchased this speaker before heading to vacation at the beach for a week. The main selling point for me was the 15-20 hours of playtime, for obvious reasons. I already have a similar bluetooth speaker that I've been using for a while but decided to try this one out. The sound quality is good, although it does limit its volume at a certain point probably to keep the audio clear. My only problem with this particular speaker is its range.
Amazing speaker, battery last almost 20 hours, great deal for the price. Small size amazing sound. my wife love it.
Answer: I haven't actually timed the battery life but it does last for a long time. The sound quality is pretty good. I do recommend this product, worth the price.