Description:This MP3 shield board is designed based on VS1053B from VLSI. using this shiled you can plug in your arduino UNO/MEGA direcly as showing in pic, dont' need need to hook up with jumpers, it's becomes more easy to play music compared with the  tiny mp3 breakout board. VS1053 is a versatile MP3 codec processor that is capable of decoding a variety of music formats,including Ogg Vorbis/MP3/AAC/WMA/MIDI audio. For the best headphone listening experience, the VS1053 includes EarSpeaker spatial processing which accurately simulates how a room with stereo loudspeakers would sound.In addition to being able to decode all major formats, VS1053 is capable of recording in Ogg Vobis file. With the SD card slot on the other side of the board, you can play mp3 files from SD card using this breakout. It is easily to drop it in your project or make a mp3 player using your Arduino or other microcontroller.VS1053 FeaturesCan play a variety of music formats, support for OGG encoding real-time recordingSPI interface, the control signal lines are led outA headphone and stereo outputA microphone for recordingA line_in input interfacePower indicator3.3V and 2.8V of LDO chip AMS-1117 on board, provides up to 800mA currentA single power supply: +5 VDC12.288 Mhz crystalSD card slotPackage List:1 x VS1053 MP3 shield with TF card slot