This recorder can be easily carried in your pocket or purse, powered by rechargeable batteries. It can be used to record meetings, lectures, interviews, etc. Equipped with dual sensitive microphones, this device can record 128Kbps high-quality audio information. It is a tool for teachers, students, salesmen, audiences, professors and anyone who needs to record what they need. The operation button is simple, just turn on your recorder, press "REC", it will record your important lectures, moments; press "STOP" to save your recording safely; press "PLAY" to listen to what you just recorded, and then press AB, select the important part to repeat, helping you learn and review the teacher's main speech in class, lectures, semesters, it's that simple. The built-in rechargeable lithium battery can provide 20 hours of continuous recording. The 8GB memory can save 7680 minutes of recording, which can be saved as multiple types of data files. This makes this device undoubtedly a durable, portable and recording device. Color: Black Material: Metal Package Contents: 1 x Recorder Only the above package contents, other products are not included. Note: Light reflection and different monitors may cause the color of the item in the picture to be slightly different from the actual object. The measurement error is +/- 1-3cm.