Feature [APP Control & 2-Way Audio]--Video doorbell wireless, Download mobile APP to connect doorbell with 2.4GHz Wi-Fi, and you can detect and secure your home wherever you are. 2-way audio without noise allows you to talk with your visitors conveniently.Support cloud storage service for convenient use. Or you can use a TF card (not included) to store videos, and it supports auto loop recording if the card is full.APP access doorbell rules: 1 main account + 8 sharing accounts = 9 users can connect to the doorbell Only 3 users can preview the screen at the same time, and only one user can talk to the doorbell at a time [PIR Detection Ring Doorbell]-- Ring Door Bell Support PIR motion detection, when someone wandering in front of door, the doorbellwill push alarm message to your mobile phone immediately (set the function in APP in advance). [720P Video & 120 Wide Angle]-- Ring doorbell wireless, 1280*720 resolution with 166 degree viewing angle ensures the clearand stable videos and images. 3 wake-up methods: press the doorbell button/ PIR detection/ mobile phone APP. [IR Night Vision]-- Ring Doorbell Wireless, Door bells with camera wireless, Day and night mode switch automatically, no matterday or night, image is clearly visible to escort you and your family& 39;s safety all the time. IR night vision will turn on when the illuminance is less than 2Lux [Wireless doorbell video camera]-- When a visitor presses the smart doorbell, the sound is activated and the camera willpush notification to your phone. It features two-way communication, PIR motion detection and IR night vision to protect your family more effectively. Smart doorbell provides home security for you, bringing you safety and convenience Wireless connection,ultra-low power consumption, remote active wake-up, can support multiple accounts to watch online at the same time [High Security Recording function]--When guests visit, they can make video and voice calls and make short-term video recordings.The host can know the information of the visitor without opening the door. Video Droorbell Specifications: Resolution: 1280*720 Field of Angle View: 120 IR Night Vision: 6 pieces 850nm LED Wi-Fi: IEEE 802.11 b/g/n Audio: Two-Way Talk without Noise Color: Black Material: ABS PIR Motion Detection: Support Wake up Method: Press the Doorbell Button/ PIR Detection/ APP Power Supply: Lithium Battery/ USB Interface/ AC Input Storage: Cloud Storage, or 8G/ 16G/ 32G TF Card (Not included) Battery:5200mAH Video format: MP4 (H.264) Video size/frame rate: 720P/20fps Network Protocol: TCP/IP/HTTP/TCP/UDP/DHCP/DNS/DDNS/NTP/RTP/P2P WIFI connection: 2.4GHz wifi, support (802.11 b/g/n) Ding Dong: Support RF 433MHZ Ding Dong Storage: Support cloud storage function (hardware without TF card function) Working voltage: 3.7V 18650 lithium battery Working current: working current 220mA (mA), sleep standby current 1.65mA (mA) USB charging voltage: DC 5V / 1.5A