I set it up after purchasing it, but I haven't taken it outside. I've mostly left it at home without even turning it on, so I haven't used it much. It's almost like new with hardly any scratches or stains, but the transparent case has some discoloration. I believe it can be used with au-based carriers, but please confirm to make sure there are no mistakes. For reference, I was using a Biglobe SIM. HUAWEI P20 Lite, with dual cameras and a rear fingerprint sensor. - Brand: HUAWEI - Model Name: P20 Lite - Accessories: Charger, USB cable, earphones, SIM pin, case, instruction manual - Camera: Dual camera (rear) - Fingerprint sensor: Rear fingerprint sensor Thank you for looking.