Voice Activated Recording:NoExternal Microphone:No Balanced Out:Yes Package:No Model Number:digital audio voice recorder Playback Formats:MP3 With Speakers:No External Memory:No Record Audio Format:MP3 Origin:Mainland China Certification:none Professional Mini 8GB 16GB 32GB Voice Digital Audio Voice Recorder Mp3 Player 3 in 1 8G Memory Storage 192Kbps Recording WAV Product Features: 1.Power switch/record switch. 2.''+'' volume plus/key for next song. 3.''_''volume minus/mp3 music conversion key 4.Headphone jack 5.Work indicating lamp 6.Size: 47*19*7mm 7.Recorded file in :wma/mp3 format 8:High capacity 9.Built-in rechargeable lithium battery 10.USB storage write protection 11.one-touch recording & high quality recording 12.Recording via high grade built-in microphone 13.Recording te;ephone conversation 14.Working as drive free usb flash disk 15.MP3 function Funcion Parameters: 1.Battery capacity:lasting for about 3-5h while continuously recording 2.Lasting for about 3-5h while continiously playing 3.Recording format:WAV 4.Music format:MP3/WMA/WAV 5.Lasting for about 48h for 4GB while continuously recording 6.Sampling frequency:48KHZ 7.Bits:192KBPS 9.Remarks: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,please extract and save the recording file timely 10.Waring tips:for this machine comes with the intelligent reset system,please save the file being recorded before connecting the computer. Package includes: 1x 8GB voice recorder & MP3 PLayer (Earphone not included) 1x connect cable 1x user manual Note:We don't offer retail package,but we will pack it well before shipped out.