This recorder is easy to carry in your pocket or wallet, powered by a rechargeable battery. It can be used to record meetings, conferences, lectures, interviews and so on. Equipped with dual sensitive microphones, this device records high-quality audio messages at 128Kbps. It is a tool for teachers, students, salespeople, audiences, professors, and anyone who needs to record what they need. Simple operation buttons, just turn on your voice recorder, press \"REC\", it records your important lecture, moment; Press \"STOP\" to save your recordings safely; Press \"PLAY\" to listen to what you just recorded, then press A-B, select your important section to repeat, helping you study and review your teacher's main speech in class, lecture, term so easily. Built-in rechargeable lithium battery provides 20 hours of continuous recording. 8GB memory can store 7680 minutes of recordings that can be saved in multiple types of data files. making this device undoubtedly a durable, portable, and audio recorder. Color: Black Material: Metal Package Contents: 1 x Voice Recorder Pen Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The allowed measurement error is +/- 1-3 cm.