This recorder is compact enough to fit in your pocket or wallet for easy portability and is powered by a built-in rechargeable battery. It is ideal for recording meetings, conferences, lectures, interviews, and more. Equipped with dual sensitive microphones, the device captures high-quality audio at 128Kbps. It is a practical tool for teachers, students, sales professionals, audiences, professors, and anyone who needs reliable voice recording. Simple operation with easy-to-use buttons: switch on the voice recorder, press "REC" to start recording important lectures or moments; press "STOP" to save recordings safely; press "PLAY" to listen to your recordings; use A-B repeat function to select and replay important sections, aiding in studying and reviewing key parts of lectures or classes. The 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 audio, supporting multiple file formats. This makes the device durable, portable, and a reliable audio recorder. Color: Black Material: Metal Package Contents: 1 x Voice Recorder Pen Note: Light reflection and differences in display screens may cause slight variations in the color shown in the image compared to the actual product. Measurement errors may vary by +/- 1-3 cm.