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 AudioIt features two way audio stream through built in microphone and speaker ,you can speak to your baby and listen what your baby saying via Zosi Smart App. Playback on the Mobile App/PC softwareThis baby monitor supports Motion detection recording and 24hrs recording after inserting a SD card. Remote Viewing, Anytime, from Anywhere Start viewing the live feed from virtually anywhere in the world in minutes. With iOS and Android options, Zosi Smart app will be at your fingertips in 3 simple steps. 1. Connect Power Supply2. Download Zosi Smart APP3. Add Device for Live ViewNote: This camera only works with 2. 4Ghz Wi Fi, not 5GHZ.