Respond in Real-Time,built-in microphone and speaker available. Talk to visitors in time anywhere, anytime. Human and Motion Detection,individually control switch on app, 3 levels adjustable for sensitivity, real time alert sending. Share with Family,you can share this video doorbell camera to 8 family accounts, and 3 of you could view online in the same time. Night Vision,all of couldn't ignore safety in night, this doorbell camera with night vision put an eye on your NIGHT SAFETY efficiently. An Easy-to-use Option, doorbell camera is an easy-to-use option with a great image, adhesive or drill installation, and its battery can deliver about four months of service on a full charge., Manufacturer: QAXRZCUCD