mini card speaker 1.portable speaker for computer,laptop,notebook,mobile,mp3,mp4 2.Compatible Micro SD/TF/U-disk mini card speaker for Computer Laptop notebook mobile mp3 mp4 Specification 1.Built-out NOKIA 5C battery;Power Supply:Lithium-ion,Computer-USB-in,DC-in2.Compatible MP3 format,Compatible TF//Micro SD card/U-disk3.3.5mm AUX in4.Memory Play:Auto remember the last song & play mode played5. ...