... poweredSupport for voice recording (optional) and FM (optional)Antimagnetic interference function Material: Aluminium alloy Power source: Li-ion battery / DC5V ... ,WMA,WAV Dimension: 5.1x5.1x5.2cm Color: pink,Black,Blue,Silver,green High quality fluorescence surface aluminium alloy, elegant ... SD/TF card, USB disk, FM, etc. Supports Line IN function, receiving the audio source from MP3, MP4, PC, Notebook, ...