... are factory , Welcome you to visit our factory Micro TF Card USB Portable speakerDetailed Product Description Mini Speaker Box Music ... , English, French, German, Italian, Dutch, etc.Supports Micro USB/TF card, FM, etc.Supports Line IN function, receiving the audio ... : lithium battery / DC5V Music format: MP3, USB,TF card ,FM Concact USTechnic specification Dimension138*53mmOutput RMS5w, THD=10%Speaker ...