This recorder is easy to carry in your pocket or bag and is powered by a rechargeable battery. It can be used to record meetings, lectures, conversations, interviews and more. Equipped with dual sensitive microphones, this device records high-quality audio messages at 128 Kbps. It is a tool for teachers, students, salespeople, the public, professors and anyone who needs to record what they need. Simple buttons to use, just turn on the voice recorder, press \"REC\", it will record the lectures and important moments; Press \"STOP\" and save your recordings safely; Press \"PLAY\", listen to what you just recorded and then press AB, select the important part to repeat, which helps you study and review the teacher's main speech in class, lecture or semester - it's that simple. The built-in rechargeable lithium battery provides 20 hours of continuous recording. 8GB memory can store 7680 minutes of recordings, which can be stored in various types of data files, making this device undoubtedly a durable and portable 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 reflections and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3 cm.