wireless doorbell camera, battery-powered video doorbell with chime, 2k resolution, no subscription required, 2.4ghz wifi, 180-day battery l

night vision function: adaptive infrared night vision function, can automatically switch day/night mode, high-definition infrared night vision, see the night visitors. smart visibility, more secure: after ringing the doorbell, the mobile app can control the video call, and capture the picture at any time and keep it in the cloud. more secure and reliable. get accurate alerts with smart human detection: adopted latest ai algorithms to identify humans in the video, reducing false alarms caused by moving objects like animals . more stable signal: aosu video doorbell is equipped with a signal-enhanced base station repeater to maintain a more stable 2.4g wi-fi signal connection. quick reply & voice changer: when a visitor rings the bell, you can answer/hang up the video call directly or select a preset quick voice reply, also can use voice changer to protect your privacy..syi