Connected Doorbell and Videophone - Universal - Waterproof Battery Wireless Video Door Phone Door Speaker Phone Intercom System 720p Night Vision PIR Camera Door Phone | Doorbell (Black) Highlights Universal Waterproof Battery Wireless Video Door Phone Door Speaker Phone Intercom System 720p Night Vision PIR Camera Door Phone | Doorbell (Black) Waterproof Battery Wireless Video Phone Doorbell with Mobile Phone 720P Night Vision PIR Intercom System Camera Handle | Doorbell (Black) Feature: 2.4G WiFi and Ultra-Low Power Technology realize true wireless technology. 720p HD Solution and 166 degree Wide Angel View Allows visitors to see no matter you are in anywhere and anytime. Advanced PIR technology can detect the suspicious person around your door and press video through your smartphone. The automatic day and night camera switch. Use 2 pieces of 18650 batteries -Ultra Long Time Standby Two Way Talkback Speed Interaction Video Doorbell Camera Specification: -Resolution: 1280*720 -Lens: 166 -Ir Night Vision: 6pcs 850mm -WiFi Standard : IEEE802.11B/G/N, Wi-Fi signal frequency: 2.4GHz -Audio: Support talkback -Record: micro SD card. -Memory: 8GB / 16GB / 32GB (the SD card not included) -Notification: within 2 seconds Hand-there time: within 600ms -Wake-up: mode button -Wake-up/telephone canvas portable alarm clock