TAKARA Portable Trolley Speaker 12 Inch Multimedia BT, Karaoke with Audio Recording, USB, SD,FM PA System with 2 Wireless Mic. Takara Audio Speakers with Cordless Double Mike, Bluetooth, USB SD Card connectivity, FM Radio features. It is Very useful for Parties, School Class rooms, karaoke singing, Satsang, Clubs & Resorts, Banquet Hall, and many other outdoor and indoor use. It can connect any audio video device with wire or wireless. You can also connect musical instrument like Guitar synthesizer or other digital instruments. It has approx. 4 to 5 hours battery backup. You can also charge this speaker with your car 12V battery. You will get 2 wireless mic with this speaker. And also connect one wired Mike. You can record your voice to USB or SD card.