1.Stereo Speaker ,MiNi speaker 2.Support SD/TF card /USB 3.four Colors 4.FM radio DescriptionDear Clients,For ... touch a key to regulate, operate convenience2.take SD/TF card and usb decode and support usb flash drive and sd ... high fidelity audio frequency lineUser manualThe power cable of usbTF card Adapter MSP001 Headphonies Speaker, Sound Blasting Mp3/computer Speakers, Smallest Speaker ...