... ,PC speaker, 2.USB mini speaker 3.Play SD,TF card ,USB Flash memory sprot music protable speakerSpecefication: Frequency : 150-18000HZ SNR ... /Blue/ silver/black packing : gift boxFetures:1.Built-in flash memory (optional) 2.. Built-in TF card slot, can be as ... -in speaker 4. Outer LED light have illuminate function 5. Compatible with audio format of MP3 6. Colors: black, red, blue ...