1.Power switch/record switch.2.'+' volume plus/key for song.3.'_'volume /mp3 music conversion key4.Headphone 5.Work indicating lampRecorded file in:wma/mp3 High capacityBuilt-in rechargeable lithium batteryUSB storage write protectionone-touch recording & high quality recordingRecording via high grade built-in microphoneRecording te;ephone conversationWorking as drive free usb flash diskMP3 functionBattery capacity:lasting for about 3-5h while continuously recordingLasting for about 3-5h while continiously playingRecording :WAVMusic :MP3/WMA/WAVLasting for about 48h for 4GB while continuously recordingSampling frequency:48KHZBits:192KBPSRemarks:Due tothe recording effect of this products ,relatively clear quality and high parameters having reached the top parameters,the recording file is relatively big,thus, extract and save the recording file tips:for this machine comes with the intelligent reset system, save the file being recorded connecting the computer.Memory Storage:32GBColour:BlackMaterial:plasticSize:47x19x7mmPackage Contents:1 * Digital Audio Recorder(32GB)Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.