This device is locked to T-Mobile only and not compatible with any other carrier. Tested for battery health and guaranteed to have a minimum battery capacity of 80%. Successfully passed a full diagnostic test which ensures like-new functionality and removal of any prior-user personal information. The device does not come with headphones or a SIM card. It includes either a generic or original charger and charging cable. Inspected and guaranteed to have minimal cosmetic damage, which is not noticeable when the device is held at arm's length.