This recorder is compact enough to fit in your pocket or wallet, making it easy to carry around, and is powered by a rechargeable battery. It can be used to record meetings, conferences, lectures, interviews, and more. Equipped with dual sensitive microphones, this device records high-quality audio at 128Kbps. It is a useful tool for teachers, students, sales professionals, audiences, professors, and anyone who needs to capture important audio. The device features simple operation controls. Turn on the voice recorder and press "REC" to start recording lectures or important moments; press "STOP" to save recordings safely; press "PLAY" to listen to your recordings. The A-B repeat function allows you to select and replay specific sections, making it easier to study and review key points from classes or lectures. A built-in rechargeable lithium battery provides up to 20 hours of continuous recording time. With 8GB of internal memory, it can store up to 7680 minutes of recordings, which can be saved in multiple standard audio file formats, making this a portable and reliable voice recording solution. Color: Black Material: Metal Package Contents: 1 x Voice Recorder Pen Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the photo and the actual product. Measurement may vary by +/- 1-3 cm.