inputs.text: sound quality excellent - happy portable speaker gave 5star sound amazing super bass function looks cute easy pair connect ipad cellphone everything great except usb charger included inconvenient dont computer charge speaker wish could included ac adapter wall charging not sure could use another devices ac adapter iti still try tf card slot micro card inserted didnt playwork dont know know music files mp3 format double check try another card lastly wish could little lighter control buttons side instead bottom doesnt matter great sound quality offers iim giving 5star