Features 1.[One Key Recording] Recorder in the power on state, gently toggle the key up that is to enter the recording mode, simple operation, easy to use. 2.[Voice Activated] Voice recorder supports sound control, intelligent detection of sound waves, recording when there is sound, no sound is stopped, saving memory. 3.[Electronic Book Function] Sound recorder supports electronic book reading, you can also set up automatic page turning, add markers, another time you can continue to read directly down. 4.[Noise Reduction] Built in noise reduction chip, significantly reduce the noise of different environments, so as to record high definition sound quality. 5.[Timing Recording] Portable recording device supports timed recording, set the start time and end time, automatically open the recording in this time period. specification?Item Type: Voice Recorder Material: Zinc Alloy Recording Format: WAV, MP3 Music Format: MP3, WAV, AAC, etc Built in Polymer Lithium Battery: 200mAh PackageList1 x VoiceRecorder 1 x Charging Cable 1 x Earphone 1 x Instruction Manual