I normally do not recommend installing nanny-cams for privacy/security reasons, but sometimes it may be necessary. I agree with Fenderman, you need to be aware that some unbranded Chinese cameras are re-manufactured or non certified/inspected products in terms of quality. For special projects, I mostly purchase Chinese mini-pinholes ip cameras, small enough to be included inside discreet items (alarm clocks, surge-protector outlets, etc.), see link below. I never prefer the beye or meye apps, but for this particular application, it comply with my requirements. Even thou is a P2P camera, I only used as a "direct login" device, in which your smartphone connects directly to the cameras wifi network (default factory ip), keeping the cam outside your home network. That may solve some privacy/security issues, since your camera is only transmitting at a smaller distance, within the range of your smartphone (you may watch live events as well, but only locally). I include an SD Card for capturing motion detection, which can be access directly through your phone (remote playback). Included find a photo of a modified surge-protector, plugged directly at any 120Vac receptacle (normally at 18 inches above floor level). I took advantage of the surge-protector included 5-Volts USB charger to power my hidden camera. You may even add a micro-switch at the bottom of the surge for powering ON/OFF the camera (for privacy reasons).
CTVMAN Mini Pinhole Wireless Video CCTV IP Camera Security Micro Smallest Wifi Cam For Home Surveillance Webcam SD Card Slot -in Surveillance Cameras from Security & Protection on Aliexpress.com | Alibaba Group