Firstly, Arlo Pro 4 is introduced, which supports direct connection with Wi Fi router without relay and forwarding through smart home hub. < / P > < p > it is worth mentioning that the device also supports high dynamic range (HDR) and color night vision with a 160 ° field of view and 2K resolution. < / P > < p > Arlo Pro 4 supports indoor or outdoor use. The built-in spotlight can illuminate the shooting target, supplemented by an alarm and two-way audio to support communication. < / P > < p > the high-end ultra 2 models support HDR and autofocus, supplemented by 180 ° field of view and 4K resolution. Like the pro 4, the ultra 2 is equipped with Bi-directional Audio, spotlights, sirens, and supports color night vision and six-month battery life. Global Tech