Been looking at these for a while. There usually around the £25 mark but it's available right now on a flash sale at £15.90. It's a movable wireless wifi camera for indoor use & has night vision.
I really haven't seen anything with the same spec for this cheap & the reviews seem to be pretty good. It's also free delivery!
There's an app for android and iOS which allows you to remotely view what the camera is recording at any time (provided you have an internet signal).
You can even speak through it to whoever's there.
Perfect for seeing what the kids/dogs are up to when your away or spying on the Mrs and freaking her out, although I'm sure it has other more viable uses...
You can also set it to email you if you get a break in etc.. Which is handy!
Before the gearbest haters start moaning I've never had any problems myself. Just don't expect a fast delivery (it usually takes 3-5 weeks) this is the price you pay for cheap items from China. Pay with PayPal and you are protected to an extent.