... We, Ko-Star, are committed to designing and producing high quality and stylish headphones.By more than 10 years manufacturing experience, we have ... *Portable speaker for outdoor and indoor use*Super clear sound quality*Plug and play feature*Support U disk,SD card*Support ... format*FM/AM features*USB-powered,rechargeable*Newest Crescent designCERTIFICATION High quality card-reader portable speaker