4GB Mini Voice Recorder Keychain Audio Recorder for Lecture Interview Meeting Class HD Noise ReductionFunctionProduct Name Mini Voice RecorderMaterial ABSProduct color BlackProduct size 2.551.45.9cm10.552.32inPackage size 10.76.32.9cm4.212.481.14inNet weight 0.016kg0.035lbsGross weight 0.058kg0.128lbsRecording method onebutton recordingRecording time approximately 35 hoursRecording format WAVMP3Playback format MP3WMAWAVSampling frequency 48KHzBattery capacity 180 mAhStressfree to carry You can hang it on your keys, wallet, phone, backpack and use it anywhere. One button can start or stop saving the file which is named by recording date and time, allowing easy file management. Reject complicated steps and record important content anytime, anywhere4GB Large CapacityMini voice recorder is equipped with a large capacity of 4GB. Meet your various recording needs. Builtin battery can record continuously for about 35 hours after full charge. Supports recording while charging and has data protection function, automatically saved when the battery is low.Automatic Noise ReductionHD Recording Which can capture longer lower but clearer sound. Personal and stylish, an ideal choice for gifts.Voice Activated ModeIntelligent voice activated recording, it starts recording when it recognizes the sound around and stops recording when it is silent. Save the amount of electricity and memory space.ApplicationsIdeal for lecture, class, inspiration, meeting, interview and more. It is a wonderful gift for teachers, students, etc.Package Includes1Mini Voice Recorder1 User manual1 Headset1 Power cable