iPhone Apple 15 pro max 256 Smartphone in white with Triple Lens

Apple 15 pro max smartphone. Features triple lens camera. T Mobile device, CLEAN and ready for activation. Battery life says 86%. I am on the phone all day without a recharge. Takes great pictures. There is a small ( tiny) scratch on screen) it really is not noticeable at all. Also screen has always been protected. Original owner and comes with box. The c charger is not included. This phone is like new. It can be unlocked for any service but I don’t know how to do that.