MI BLUETOOTH SPEAKER has very nice sound quality.you can’t imagine that it has high base and smooth sound .long lasting battery power. It is very simple and uncluttered and easy to deliver clear audio voice. This device has fast charging capacity within two hours it complete charging.at this price you get many more features in this device it can connect with your devices easily .its shape is also better than others speaker phone.its not too much expensive .you will be happy with this speaker after purchasing.thank you. have a good day .