... sound fucntion 4,high quality 1,Pictures of Hot selling usb input mini audio box 2,Products information USB power supply mini audioCan match laptop, desktop computers, MP3, MP4 ... other digital equipment play.3,Other information of productsAbout the mini speaker ,we focus on different models of the minis speaker ... : 100pcs2,Can OEM (with your logo)3,can mix color Hot selling usb input mini audio box