2-wire SIP Intercom with one Button, Video & Card reader

2-wire Intercom with one Button (Video & Card reader)
1.Body material: Zinc alloy
2.Camera: 2M pixels, automatic lighting,Viewing angle: 110°(H) / 58°(V)
3.RF Card Reader 13.56MHZ&125KHZ Card reader
4.Output Relay: 2 output relays for door opener
5.Water-proof & Dust-proof: IP65
6.Installation: Surface Mount model
7.Powered by Akuvox NS-2 or C313W-2
8.Two-way audio communication over IP networks with Echo Cancel
9. Support connecting with C313W-2 or NS-2 through 2-wire cable