Description:  128x64 pixels LCD screen to display working status and battery capacity  This device works as a voice recorder and a MP3 player. With an external microphone, you can also use it as a digital voice recorder for recording lectures, meetings, interviews.  Comes with a built-in rechargeable Li-ion battery and a mini USB input port, which allows you to charge the device directly through your PCs, USB port or adapter with DC5V output.  Ultra-low power circuit design to achieve long time recording, this audio recorder can work continuously for up to 72 hours or more.  Deletion function: Delete MP3 music files and voice files stored in the device. You can choose to delete a single file or all files.  USB connection allows you to upload and download the voice files.  With a built-in loudspeaker, you also can enjoy music or recorded voice without an earphone or speaker.  Support automatic voltage detection and voltage protection functions, it will automatically power off after 5 minutes stand-by time.    Specification:  Size: 9.2 x 5 x 1.1 cm (L x W x H)  Memory capacity: 8GB  Expanded memory: TF card (expanded up to 64GB, card is not included)  Recording format: WAV/MP3  Music Format: FLAC/APE/OGG/MP3/WMA  LED Display: 2.0 inch  Distance: 3-20m  USB cable length: Approx. 70cm  Bit Rate: 1536Kbps  Max File Number: 999  Battery: Built-in 850mAh lithium battery  Recording hours: 80h (based on power amount and recording mode)  Standby hours: 300h  Battery: Built-in 850mAh Li-ion Battery  Interface: Mini USB2.0  Rewinding/ PREV function: Support  A-B repeating function: Support  Fast forward: Support                     Package Includes:      1* Voice Recorder      1* Charger Cable      1* User Manual