Micro SD card up to 64G should be inserted for functions of recording and remote viewing but not included in the package. 4. Camera should be plugged in for power supply. Specification: Resolution:19201080 Sensor: 2 MP CMOS Lens: 3. 6mm Night vision: up to 8 meters Video storage: Micro SD CardMax 64GB, not provided Input and output: Built in microphone and speaker Video compression: H. f 720p WiFi cameras; It is much better in view image quality and angle for your security purpose. Move it up and down, left and right with your phone. Smart Motion Detection for Alerts Push alerts message to your mobile phone when a danger is detected. Record and save motion detected videos to your inserted Micro SD card can be up to 256GB. Clear Two way Audio It features two way audio stream through built in microphone and speaker , you can speak to your baby and listen what your baby saying via Zoos Smart App. Playback on the Mobile App/PC software This baby monitor supports Motion detection recording and 24hrs recording after inserting a SD card.