* 8g memory - with 8gb memory, this keychain voice recorder has great capacity and is easy to transfer.
* phone call recording - after connecting the voice recorder to a phone through a phone adapter, it will record communications without stuck or cut.
* 4 recording modes -"sp"mode for recording high quality voice without distortion;"lp"mode for long time recording;"sp voice"mode enables it to record high quality voice under sound control;"lp voice"mode makes it capable of long time recording
* auto recording - with vor system, the mini audio recorder will automatically record when sensing voices and pause without sound.