For the price I like it, it's NOT "wireless", it comes with a cord to plug into a wall outlet. Easy setup, it connects to your wireless internet and that's how it works. I bought a memory card thinking it would be needed to store videos, but it uploads to the cloud. I think that the card only gives you the option to increase the amount of storage (I could be wrong). The reason I specifically bought this model is because I wanted two way communication that works great and is loud. You can set how close or far away you want to receive alarm notifications. You can also set the notification to receive alerts on your phone at a specific time. It's annoying because it senses every car that drives past your house, but you can also customize depth perception and only be notified of things that are in your yard, porch, etc. I would recommend this and I plan on getting one for my back because they sync with each other in the app. Clear night vision, you can zoom in if you want, all around for the price it's great. I didn't test it in the Wisconsin winter since I only got it in the summer, so I'm not sure how well it performs in extremely low temperatures. Hope that helps
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