1、Intelligent Recording: Small recorder, ADPCM recording 192Kbit, optional voice activated recording 50DB, automatic split recording, overlay recording. Compact size, only 0.9 x 0.9in. 2、Noise Reduction: HD digital voice recorder with the latest noise reduction technology to provide you with clear and dynamic sound, suitable for recording needs in study and work scenarios. 3、Multifunctional: This voice recorder has delete function, LED indication playback function. Support MP3, WMA, WAV playback, and with backward playback option. 4、Voice Activated: Record when sound is automatically detected and stop recording when the sound disappears. Save storage space and finding related recordings from sound files will be easier. 5、Built In Timestamp: Pocket recording device uses automatic timestamp, the current date and time will be automatically recorded on the sound, easy to manage the recording files. 6、Long Recording Time: The battery allows the recorder to record for up to 30 days using voice activated recording and 18 hours of continuous recording. A full charge takes 2 hours. Item Type: Small Voice Recorder Material: Metal, Electronics Model: Q63 Battery Type: Built in 300mAh Lithium Battery (Included) 1 x Small Voice Recorder 1 x Wired Earphone 1 x Charging Cable 1 x User Manual