MINI PORTABLE: The unique design of the keychain with mini body can be easily put into a pocket, purse, or hung around the waist. This keychain recorder has high drop resistance and durability, there is no light and no sound when recording.HIGH-QUALITY RECORDING: This keychain recorder has a built-in intelligent noise reduction chip, which can effectively reduce environmental noise by more than 90%. It supports bit rate 0-5 level adjustment, 1-7 level recording density adjustment (the greater the level, the higher the sensitivity), to help you better restore the true and natural sound quality in different environments.SCENES TO BE USED: This recorder is an Perfect choice for you to participate in conference training, study lectures, interview records, evidence collection and rights protection, etc. This voice recorder battery can be used continuously for about 15 hours, and it supports recording while charging. Built-in 16GB/8GB can store 192 hours of recording files. There is no need to worry about power failure or insufficient memory during use.VOICE ACTIVATED: This recorder has a voice activation function. When you turn on this function, the recorder will automatically start recording and save the sound after it recognizes the sound. When there is no sound, the recorder automatically stops, which can effectively save power and storage space, and reduce the blank and invalid recording of whispering. (This function needs to be turned on on the computer)EASY TO USE: This recorder has only one button, which is used to start or stop recording. There is simple and easy to useRAM: 8GB / 16GBsize: 63.8 x 18.8mmMaterial:Zinc alloycolour:blackPackage Contents:1 x mini voice recorderOnly 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.wed error is +/- 1-3cm.