Q. Sorry, does it come with an internal flash memory at all? Thanks
A. Yes it does have internal memory which can also be expanded up to 16 gig.
Q. 1. Has this one rechargable battery and how many hours can it record
2. Can this capture in dark (night) as well ?
A. This product has built in rechargeable batteries and can also be plugged into power so as to stay charged.
Hours of recording depends on the size of the sd card used, up to 20 hours of footage is possible.
Q. When in motion sensor mode does the unit go into standby mode if nothing is detected after a certain amount of time (to save memorary) then start again once movement is detected again ?
A. Yes it does.