Surveillance Telephone Recorder With Remote Control
Feature:

Remote control
Recorded data can be accessed without contacting the controlled telephone end
A  Remote playback of record files
Wherever users go, the recorder files can be remotely played back through the mobile phone or telephone; moreover, next segments or previous segments can be played according to need, and any single file or all files can be deleted.
B  Remote copying of files (two telephone recorders shall be used together)
If the telephone at the control end is also connected with a telephone recorder, then the data such as phone number, calling time and conversation contents can be copied to the recorder when interview record files.
Local playback  
Recorded files can be played back by the unit even there is not a computer nearby
Recorded files can be directly played back by the telephone recorder without connecting it to a computer.
Recording data of specified numbers
Storage space can be effectively used
Ten groups of specified telephone numbers can be set; only the calls of the specified numbers are recorded and the calls of the other numbers will not be recorded by the system.
Notifying the control telephone end
The information recorded at the controlled end (slave) will be known at earliest time possible
When there is information newly recorded in the telephone recorder at the controlled end (slave), the system will automatically dial the telephone number of the control telephone end in 10 seconds after the information is recorded to inform the monitoring party that there is a new record at the controlled telephone end.
Automatic record overwriting in turn (with the function of protecting the data of specified telephone numbers from being deleted)
The storage space can be automatically cleared to facilitate recording with no need to turn off the recorder
When the available storage space is lower than a certain value, the system will automatically delete some data in the used space and keep an available space for continuously recording, while the recorded data of specified numbers will be protected and will not be deleted.
Automatic answer
Calls can be answered and recorded automatically when nobody answers the call
Message can be recorded in advance; when nobody answers an incoming call, the system will automatically answer the call and play back the message.
Time and number display
Time of each recorded information and the telephone number communicated with the controlled end (slave) are provided to the user
The time displayed for the record files includes year, month, day, hour, minute, second and total duration.

Specification:
Bit rate of voice data: 64KBPS
Voice format: MP3/ADPCM
Format of calling number display: FSK/DTMF
Detection of outgoing calls: DTMF
Security: 6-figure user password
TF card capacity: Maximum 2G; about 37 hours of conversation can be recorded in 1G
File system: FAT32
Power interface: 5PIN USB
Power supply: 4.5V-5.5V , 300mA
Power consumption: Recording: 56mA; Data transmitting: 36mA;
Stand-by loss with card: 500uA;
Pop-up of TF card: 50uA
Battery specifications: 4.2V—1000mAH
Battery life: About 7 hours for recording and 8 hours for playing
Time for full charge with external power supply: 5 hours.
Electromagnetic compatibility: Accordance with FCC standard
Operating environment temperature: -10~60°C
Operating environment moisture: 20%~80%
Size: 72mm*49mm*26mm
Weight: 136g(Li-battery included)

Accessories:
CD driver
USB cable
USB interface power
RJ11 telephone line
Remote control
TF card