This pocket-sized voice recorder, powered by a rechargeable battery, is ideal for capturing meetings, conferences, lectures, and interviews. Featuring dual sensitive microphones, the device records audio at 128Kbps. It's a useful tool for teachers, students, salespeople, and anyone needing to record audio. With simple operation, just switch the recorder on, press "REC" to record, "STOP" to save, and "PLAY" to listen. Use the A-B function to repeat important sections, aiding in studying and reviewing lectures. The built-in rechargeable lithium battery provides 20 hours of continuous recording. The 8GB memory stores up to 7680 minutes of recordings, saved in various file formats. This makes it a durable, portable, and reliable sound recorder. Color: Black Material: Metal Package Contents: 1 x Voice recorder pen Note: The color of the item in the image may appear slightly different from the actual item due to light reflection and display variations. The measurement error allowed is +/- 1-3cm.