Features:

•  See and hear to visitors, receive photos through your smart phone app when visitors ring the doorbell
•  Easy to install No wires needed. Battery can be replaced easily.
•  Requires a Smartphone either an Android or iOS and Wi-Fi Connection
•  The unit works as a traditional wireless doorbell whether or not Wi-Fi is operational.
•  When a visitor rings the doorbell, a snapshot will be taken and sent to your smart phone
•  Image sensor 4 inch CMOS with 2.0 MP resolution
•  Transmission through RF 2.4 GHz between indoor and outdoor units and Wi-Fi 2.4 GHz
•  Power Indoor Unit AC 100-240 Volt | Outdoor Unit Battery AAA x 2
• Model : D01