3.5 inch color indoor phone, for apartments,high quality, competitive price, manufacturer in Shenzhen Vogue and beautiful design3.5 inch colour TFT LCDTwangs music ringFour wires connect outdoor phoneResolution more than 380TV lineWorking voltage 110-240VVideo output PAL or NTSC.Calling out, surveillance, open door, talking and door bell etc. function.For apartment.