Wireless Video Doorbell System Dual Way Intercom 492.1ft Range Video Doorbell Camera with 4.3 Inch Display for Home Item Type: Wireless Video Doorbell System Material: ABS Transmission Range: Approx. 150m / 492.1ft Storage: Supports small memory card up to 256G(Not Included) Indoor Unit: Size: 4.3 inch Color Display Screen Main Function: Photo/Video Recording/Video Intercom/Visitor Message Viewing Material: ABS+PC Flame retardant Materials, Silicone Keys for Better Touch/Longer Lifespan Power Supply: 1000mAh Polymer Battery (Built in), Battery Model: N/A or Type C Power Interface Menu Language Support: English, Japanese, German, French, Russian, Italian, Korean, Thai, Vietnamese, Polish, Portuguese, Spanish Outdoor Unit: Camera: 300,000 Professional Security Camera, Resolution 640*480 Viewing Angle: 80° Night Vision: 4 850 Infrared Night Vision Lights, 1m Infrared Night Vision Power Supply: 1000mAh Polymer Battery (Built in), Battery Model: N/A Charging Voltage: DC 5V