Description Features: The MP3 decoder board is based on the VLSI VS1053B design. With this board you can insert MEGA directly without the need to connect jumpers. Playing music is easier than with a small mp3 distributor board. The VS1053B is a versatile MP3 codec processor capable of decoding a variety of music formats, including Ogg Vorbis / MP3 / AAC / WMA / MIDI Audio. For the best headphone listening experience, the VS1053B includes the EarSpeaker space to accurately simulate the sound of a room with stereo speakers. In addition to being able to decode all major formats, the VS1053B supports OGG real-time encoded recording. Equipped with a memory card slot for storage room extension. With serial peripheral interface,all control signal cord is lead out. Specification: Earphone and Loudspeaker Output Interface:1 Microphone for Recording:1 Line-in Input Interface:1 Power Indication Light:Yes Chip: 3.3V/2.5V Maximum Provided Current: 800mA Single Power Supply:+5VDC,Capacitor Filtering Crystal Oscillator: 12.288Mhz Size:6 x 5.7cm / 2.36 x 2.24in Package List: 1 x MP3 Music Shield Board .