It is not a  Wireless CAMERA, it is a Digital Video Recorder .

This is our new product calculator  Mini DVR camera����Calculator dvr. the size is just the same as calculator , is the  thinnest digital video recorder and camera. it's operated inside ,can be used in any place secretly  (such as  conference, meeting, secret surveillance evidence collection).built in a high volume Lithium-ion battery. easy to operate. calculator camera micro- recorder/camera/recorder .
The thinnest digital video recorders
The thinnest digital recorders
The thinnest digital camera
The most powerful calculator camera  dvr

Specification:

1.Tiny size makes it for a variety of uses.
2.It's great for use as a hidden cam, spy cam , etc.
3.Real time recording in AVI video format
4.Continuous recording until memory is full or manually off
5.Color video with voice
6.Internal rechargeable battery
7.Internal memory:4GB
8.Playback video on PC 
9.Video compression : AVI video format,640*480
10.Voice recording: Yes
11.Internal memory: Yes
12.Flash:4 GB
13.Video file size; >500KB per min.
14.Recording mode :continuous recording until memory is full or manually off
15.Adaptor type: USB adaptor charging cable
16.Battery type : Lithium-ion 1100MA
17.Record time : up to 3h for 1GB
18.Battery use time : about 7-8hour
19.Weight:480g


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