We had previously the Avent, but since it is much more expensive and no intercom function has returned there and we chose this. Radiation values should be at Audioline better, but the image quality slightly worse, in my opinion, but that does not really contribute to the high role plays. Too bad that you can not use a tripod! The dock is great! Appearance does Avent it better. Nuk (have friends) is much too expensive and has no optical signal. So our winner is Audio Line. You can even connect more cameras - great thing