I purchased 2 for my 2 picky cats while I am away and only used this one for about a month so it's practically open box. I'm letting one go bc they finally decided to share. The set up is easy and you can use an app to see video anytime and talk or listen thru built-in speaker. You can also set pre-recorded voice messages to play at feeding time. Works perfectly as long as Wi-Fi is close by. Battery back up. See full specs by looking up the name on Amazon: Best Choice Products Smart Automatic Pet Feeder with HD Camera, Wi-Fi Enabled Smartphone App, Portion Control, 4.5L Food Capacity, 2-Way Audio Voice Recorder Microphone, for Cats and Dogs Paid $90. Was shocked how good for the price and comes apart easy for cleaning.