Yulass 8GB Handheld Digital Voice Recorder with Password Protection Fuction Support TF Card Expand to 64GB Memory - Gray Easy to use even for a beginner, one-press record/ save/ pause/ stop/ play, one-press to switch between recorder and MP3 player, one-press A-B repeat. Comes in 8GB internal memory (max. recording time up to 1,162 hours), MicroSD / SDHC (up to 64GB). Multifunctional: voice activation / track-marking/ time stamp/ scene select function/ set password/ set time to auto power off/ PC connection and more! Recording in WAV /MP3 format. REC Bit Rate of WAV format up to 1536kbps that offers you a real Hi-Fi sound quality of recording, the perfect solution for recording meetings, conferences, interviews or lectures. Long-lasting built-in rechargeable lithium battery of 1430mAh, up to 168 hours working time every signal full charge. Charge via a computer USB port, takes about 4 hours to be fully charged. Recording via built in microphone/ external microphone/ Line-in recording. You can set a time to AUTO REC, it also supports monitoring while recording that means you can listening to the recording file while recording is in progress.