Dear Sir/Madam, Capacity:> 4GB Record Audio Format:MP3,WAV Products name:1.4 inch TFT color displays digital music pocket recorder device Memory:8GB Recording time:30 Hours Color:Grey Support:MP3/WAV/REC Function:Mp3 Player/ Voice Activated Battery:Built-in Lithium Battery Type:Recorder USB Feature:Noise Reduction Function Interface:USB2.0 Show More