Features: 1.Small and exquisite body, only 4mm thick, sturdy and durable. 2.Start recording with sound, stop recording without sound, save power, save recording files automatically when power off, easy to operate. 3.You can record while charging, and record while charging. The recording file name is recording time, and file encryption is supported. 4.It supports multi-format music playback such as MP3, and can switch recording and playback for one song, which is interesting and practical. 5.Built-in large-capacity lithium battery, can record 36 hours continuously, play 15 hours continuously, and stand by for 60 days. 8g package includes: 1* 8g memory recorder. 16g package includes: 1* 16g memory recorder. 32g package includes: 1* 32g memory recorder.