Features: 1. High-Definition Noise Reduction Voice Recorder, Technology Noise Reduction, Flexible And Clever Use 2. Simple And Easy To Carry, Low-Key And Practical 3. Recording, Simple Operation, Keep Up With Learning, Work Beat, Record At Startup/Quickly Record The Scene, Without Fear Of Omission, Record At Startup 4. Noise Reduction Technology + 8-Core Dsp Chip, Intelligent Recognition And Reduction Of Environmental Noise, Through Acoustic Noise Reduction Processing Lossless Output Voice 5. Intelligent Voice-Activated Recording, Automatically Record When There Is Sound (The Sound That Can Be Heard By The Human Ear), Pause The Recording When There Is No Sound, Save Space And Playback Time, And Improve Efficiency Description: 1. Recording Mode: Boot Recording, Shutdown Save 2. Transmission Interface: Usb 2.0 3. Recording Distance: Sound 50 Db Can Be Recorded 4. Material: Zinc Alloy 5. Recording : Mp3, WMA, WAV 6. Size: 4.1 x 3.5 x 0.9cm 7. Recording Time: 25 Hours 8. Display: No Screen 9. Number Of Microphones: Two-Way 10. Battery: 120mAh Lithium Battery 11. Capacity: 32GB 12.Color: Black 13.Material: zinc alloy Package Contents: 1 x Recording Pen Only the above package content, 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 +/- 1-3cm.