TRUSTIN Portable Multifunctional Digital Voice Recorder with Timing Voice Control 8GB Dictaphone Mp3 Player multifunctional recorder, support A-B repeat function, music function, keys lock, can be used as a Dictaphone for conferences, meeting, lectures, classes, and many other events. 8GB capacity; no need to worry about inadequate memory, it also support Mp3 / WMA / WAV, more choices for you to choose. environmental friendly and rechargeable lithium-ion battery. You can just plugged it into a USB port on your computer via the USB cable, for a full charge less than an hour. low power consumption, it could record more than 100 hours and more than 40 hours for mp3 player.Battery recording time is around 75 hours. smart recorder support timing voice control and could automatically save recording files even though unexpected power interruption occurs