Review on Celestron StarSense Explorer LT 80AZ Telescope with Smartphone App Integration – Locate Stars, Planets & More with StarSense App – 80mm Refractor – iPhone/Android Compatible by Tyler Cooley

I had to stop and send the package back when I saw it was already open. I haven't done it, so the time and effort to get it working is half mine. The "secret code" sent in the package to set up the phone has already been used and the battery activated for the red dot function. short story. I contacted Revain and sent the device back for a full refund. The manufacturer should never have shipped this device.CB