Buy on Amazon : br Anybest PRO 8GB LCD 40hr Battery Life PCM Digital stereo recorder USB Voice Recorder Pen withbr br Voice Activated recording Sensitivity adjustable LOHIRecording light can be turned off for secret recording br Support multiple audio format such as MP1 MP2 MP3WAVUSB20 no drive needed for Win XPVISTAWIN7 OS 10X or above br Volume Adjustment in 20 levelsmp3 player function br Built-in SpeakerUSB20 fast connect to computer br Recording monitorlisten to on-going recordings via earphone