... & video quality, Two-way audio monitoring; * Specification: 1) Image Sensor: 1/4" CMOS sensor 2) Lens: f=4.5mm, F=2.0, Fixed ... or Compatible Browser, Firefox, Opera, Safari etc. 16) Image Sensor: 1/4" CMOS sensor 17) Lens: f=4.5mm, F=2.0, Fixed ...