I bought this speaker in March 2018. This speaker has amazing sound quality. I live in hostel so we use it in our hostal partys. This speaker has amazing battery backup. At once full charging it works 4 to 5 hours continuously. It has good Bluetooth range and this device is very quickly connect to my Samsung on5 pro. I also like it’s LED indicator because it’s easily indicate the low battery. When battery become low it shows red light. And the most important thing is it’s design. It is very easy to carry or to stand any place because of it’s square shape.