This bluetooth speaker is very good for a small room/laptop output speaker use.It has fine and good amplified sound.The best thing about this product is you get to play the speaker over
1.bluetooth
2.OX cable( directly from device using external cord)
3.FM radio
4.SD card
The battery quality is also good , With a daily usage of 4-5 hrs avg , you have to charge it for 1 hr daily.
But the sound range is not so much . if you intend to play it for loud music hearing , its not worth of it. Morever the sound over mobile phone is a bit less than the sound over laptops.
I RECOMMEND THIS SPEAKER FOR LAPTOP USAGE AND SMALL ROOM DECORATION , BUT NOT FOR LOUD MUSIC OUTPUTS.