4GB Mini Voice Recorder Keychain Audio Recorder for Lecture Interview Meeting Class HD Noise Reduction Feature: Product Name: Mini Voice Recorder Material: ABS Product Color: Black Product Size: 2.55x1.4x5.9cm/1x0.55x2.32in Package Size: 10.7x6.3x2.9cm/4.21x2.48x1.14in Net Weight: 0.016kg/0.035lbs Gross Weight: 0.058kg/0.128lbs Recording Method: One-Button Recording Recording Time: About 35 Hours Recording Format: WAV/MP3 Playback Format: MP3 / WMA / WAV Sampling Frequency: 48KHz Battery Capacity: 180 mAh Stress-free to carry: You can hang it on your keys, wallet, phone, backpack and use it everywhere. One button can start or stop/save the file which is named by recording date and time, enabling easy file management. Reject complicated steps and record important content anytime, anywhere! 4GB Large CapacityMini voice recorder is equipped with a large capacity of 4GB. Meet your various recording needs. Built-in 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 Reduction & HD RecordingWhich can capture longer/lower but clearer sound. Personalized and stylish, an ideal choice for gifts. Voice Activated ModeIntelligent voice activated recording, it starts recording when it recognizes the sound around; stops recording when it is quiet. 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 Includes: 1 x Mini Voice Recorder 1 User Manual 1 Headset 1 Power Cable