1.The furthest recording distance is 20 m .You can choose a long or near distance recording mode according to the environment or needs.2.Memory: 128megabytes to 8G, recording time:10hours to 100hours.3、The USB 2.0 data delivers quickly and the recording document can be uploaded to the computer and permanently preservation,can be used as a mobile Udisk.4、Support MP3 and WAV music formats.5、Built-in large capacity Lithium rechargeable battery which can be directly charged up with the USB.6、Noting and recording are synchronous.7、Wonderful concealment design , simple and practical.
