This product is a set 2.0 include call function + FM Radio + TFT card play + LINE IN input in one multifunction Bluetooth speaker with backlit LCD; LINE IN MODE: The product start work when press the power switch to ON side . LCD screen light and in LINE state at the same time. Can connect computer or other equipment to play music by MINI USB port connect; Bluetooth mode: the power switch at ON state press function key long time enter Bluetooth state LCD display BLUE Bluetooth indicator light shining this moment product can connect mobile or other equipment with Bluetooth after paired (pair number 0000) can call or play any music of mobile or other equipment; TFT card mode: when the power switch at ON state at any state put TFT card the product will automatic shift to TFT card mode and play music in TFT card. At the TFT screen display TFT and song's time; FM RADIO MODE: Long press to FM mode when the power switch at ON state press function key enter FM mode LCD display FM and FM frequency at this moment can search channel automatic or change audio station. Product built-in FM antenna if you want to have more audio station plug circumscribed antenna.