4GB Mini Voice Recorder Keychain Audio Voice 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 Packing size: 10.7x6.3x2.9cm/4.21x2.48x1.14in Net weight0.016kg/0.035lbs Gross weight: 0.058kg/0.128lbs Recording method: one key recording Recording time: about 35 hours Recording format: WAV/MP3 Playback format: MP3 / WMA / WAV Sampling rate:48KHz Battery capacity: 180 mAh Stress-free to carry: You can hang it on your keys, wallet, phone, backpack and use it everywhere you go. One-Key can start or stop/save the file which is named by the recording date and time, realize 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 a full charge. Support recording while charging, and has data protection function, automatically save when the battery power is low. Automatic Noise Reduction & HD RecordingWhich can capture farther/lower but clearer sound. Personalized and stylish, an ideal choice for gifts. Voice Activated ModeIntelligent voice-activated recording, it starts recording when recognizes the sound around; stops recording when quiet. Save quantity of electricity and memory space. AppllicationsIdeal for lecture, class, inspiration, meeting, interview and more. It is a wonderful gift for teachers, students, etc. Package Included: 1 x Mini Voice Recorder 1 Instruction manual 1 Headset 1 Power cord