Features: Automatic or manual recording Convert to .wav file with one touch Manage in real time Quickly and Easily searching conversation calls by pressing a button Manual controls: Pause， Continue play Each call has data and time in detail to assist searching Allows to change recording volume Recording Format: SD Card Up to 72 hours recording on one 1G SD / MMC memory card support with 8 G (max) memory card Power Supply: Battery and AC Adapter No Computer Required Power adapter powered Connects directly to analogue line or to digital/IP telephone handset cords Automatic start， stop and record Rapid search and playback controls Automatic overwrite call data when the card memory full LCD displays for all call information Digits dialed， time and date stored Current: 110v/220v for your choice Applications for example: - Control of employees- Parental Control- Registration of important calls- Registration of placed orders- Monitoring of emergency calls- Evidence gatheringPackage Included 1 x Telephone call recording box1 x Power adapter1 x Cable 1 x User manual