Easy setup of in-car Wi-Fi environment & a heat-resistant mobile router that doesn't have a battery, nanoSIM card required. The included double-sided tape fastener and power cable are missing. Everything is as shown in the pictures, and I was using it until a few months ago, but I have already canceled my data SIM, so its current operation is unconfirmed. It's been about a year and a half since I purchased it, so I'm selling it at a low price. Please download the instruction manual.