Dahua 1.3MP 2 Wire IP Villa Outdoor Station, Viewing Wide Angle 90 degree, Night vision and Voice indication, Built-in Speaker, Group Call, Video and Audio Messaging, Support Dual-way Bidirectional talk, Built-in Omnidirectional Mic, 10/100Mbps Self-adaptive Ethernet TCP/IP, Stainless Steel Panel Material, DC24V <10W, Excellent Vandal Proof, IP54, IK07, Remote intercom with mobile APP(VTNC3000A needed), Network signal and power in 2 wires, Optional: Surface mounted (VTOB108) & Flush mounted(VTOB107)