automatic recording when there is sound, automatic pause when there is no sound. One click recording, easy to start work. With password function to protect your record files. Multiple Playback Modes - Support list loop, random play, browse play, single loop. 3.5mm jack headphones to listen to lossless HD sound quality! It can adjust the 0-31 level volume and 6 play modes. Also has the function of repeat reading, and it will be played repeatedly at the two time points of A and B. High Capacity Battery - Built-in 280mAh battery with sustainable cycle charging can be fully charged and continuously record for about 60 hours. Strong Compatibility More Setting - Compatible with Windows 98 Second Edition/MillenniuM Edition/2000/XP/ Windows 7, easy to upload and download. Support setting time and date, 20 system language to choose, and screen and backlight brightness to adjust. Wide Applications - Ideal for your business meetings, negotiations, interviews, presentations, conferences, semester classes, presentations, group discussions, etc., accurately record all the details. Specification: Storage: 8GB Storage Time: 80hrs Material: Zinc Alloy Size: 10.5 x 2.5 x 0.7cm/4.1 x 1 x 0.3in Weight:1.9oz/55g Screen: TFT Screen Interface: MICRO 5PIN USB2.0 Battery: 3.7V 280MAH Lithium Battery Recording Time: 60hrs Music Format: MP3(8KHz48KHz, 8Kbps320Kbps) Record Format: WAV (512/768/1024/1536/3072Kbp), MP3 (32/64/128/192Kbps) Earphone Output: 2x20MW(16ohm) Frequency response: 20Hz to 20KHz Signal-to-noise ratio: gt;90dB Support System: Windows 98 Second Edition/MillenniuM Edition/2000/XP/ Windows 7 Package Size: 15.5 x 8 x 4cm/6.1 x 3.1 x 1.6in Package Weight: 126g/4.4oz Packing List: 1 x Voice Recorder 1 x Earphone 1 x USB Cable 1 x User Manual