feature and specificationLow-power，long 99.99 hours recording large memory space for storage available in 8GBRecording monitor hearing function;recordable over headphones when you are recording the same content Record up to 99 voice messages.MP3，WMA and ADPCM format supportRecording light can be hidden functions(for secret recording)Music playing functionVOR Voice Operated Recording function(that is，when recording with sound，no sound when the suspension)HP，SP，LP，LI，Four kinds of recording function;telephone recording functionRepeating mode(A-B):Repeatedly play certain segment of a song.USB connectable for uploading and downloading voice files(including music and MP3 song)Built-in speakerLanguage:Only EnglishPackage included:1 X Digital Voice Recorder1 X User Guide1 X USB Cable1 X External Microphone1 X Hi-Fi Earphone1 X Recording Cable1 X Phone Line1 X Telephone Box Converter