mini AUDIO USBSOLO is used for LIVE SOUND for budding Musicians & Artists 3 Input for Mic; Musical Instrument; Aux input alongwith USB Mp3 Music player & FM Radio Lithium Ion Rechargeable Battery for continuos Music Playing for Outdoor Environment USBSOLOX includes Cordless Microphone since Indian Classical Music Usually requires 2 microphones for small Musical interaction due to wind musical instruments used