1080P wireles video doorbell door bell phone intercom wifi battery camera wireless support TF card+Exquisite retail box

Specification: Resolution: 1280*720 Field of Angle View: 166° IR LED: 6*850mm Wi-Fi: IEEE 802 11 b/g/n Audio: Two-way talk with noise cancellation Recording: Device SD card recording(20 seconds) Storage: 8G/16G/32G(not included) Battery: AC Input/ 3 x 18650 specification batteries(work regularly for 6 months.) (Not Included) Monitoring: Device Button, Motion Detection, Remote Live View Notification Function: Push Notifications within 1 second Device Wakeup: Within 600 ms.syi