This recording device is easy to fit in your pocket or handbag to carry around, and is 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 buttons for operation, just turn on your voice recorder, press \"REC\", it will record your important lecture, moments; press \"STOP\" to save your recordings safely; press \"PLAY\" to listen to what you just recorded, and then press AB, select your important section to repeat, helping you study and review your teacher's keynote speech in class, lecture, semester 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 sound recorder. Color: Black Material: Metal Package Contents: 1 x Voice Recorder Pen Only the above package contents, 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 measurement allowed error is +/- 1-3 cm.