Item Type: Heart Shape Pendant RecorderMaterial: Zinc AlloyRecording Format: WAV/MP3Playback Format: MP3/WMA/WAVPolymer Lithium Battery: 120mAh (Shipped With Built In Battery)Package List1 x Heart Shape Pendant Recorder1 x Earphone1 x Charging Cable1 x Instruction1Delicate Design: The small voice recorder is made of zinc alloy, having matte black appearance, 5D glass, beautiful style, being equipped with lanyard holes. 2Unique Technology: The voice activated recorder has PCM recording 1536Kbit technology, having optional voice control recording 50DB, automatic segmentation recording, can cycle cover the recording. 3Long Standby Time: The mini recorder can work 35 hours of continuous recording, standby for 30 days, having 4GB capacity and 70 hours of recording storage. 4Convenient Use: The pendant sound recorder has one click recording function and online deletion function, having LED light play indication, simple and convenient for use. 5File Management: The digital voice activated recorder is equipped with a time stamp, to conveniently manage the file name, and can support MP3, WMA, WAV playback, support fast back and forth playback.