1、One-click quick recording, silent and no light, convenient to use. 2、For DSP high-definition noise reduction, restore pure sound quality, long-distance silencer and noise reduction. 3、Suitable for a variety of occasions, classroom learning, personal recordings, meeting minutes can be easily handled. 4、Pen-shaped design, support for refill replacement, you can write while recording. 5、It can be connected to a computer or charger for charging. Support U disk function. 1 x Recording Pen 1 x Instruction Manual Recording Format: WAVRecording Capacity: About 144 HoursRecording Time: About 10 HoursAudio Sampling Rate: 32KHZRecording Quality: WAV-192KFrequency: 20-20KHZMemory Capacity: 8GBattery Capacity: 110mahMicrophone: Non-Directional MicrophoneOperating Temperature: -10 ° - 40 °