1,Its professional audio chip, low power amplifier to restore real and clear sound and realize noise reduction, low power consumption. 2,It records when power on, saves when power off and is convenient, practical and quick to record. 3,No need for data cable and no need to transfer interface, USB can be used as U disk directly into the computer, and data can be imported quickly. 4,It has high‑definition noise reduction technology, so that you can record while studying and business meetings, without the trouble of noise. 5,U Disk Voice Recorder uses a material of ABS, so it is durable and has a long‑service life. 1 x Voice Recorder1 x Manual Item Type: U Disk Voice RecorderMaterial: ABSModel: U01Recording Format: WAVSampling Rate: 48KHzPlay Bit Rate: 192K bpsBattery Type: Lithium BatteryBattery Capacity: 120mAh (Built-In) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.