The device does not come with headphones or a SIM card. It does include a charger and charging cable that may be generic.
This phone is unlocked and compatible with any carrier of choice on GSM and CDMA networks (e.g. AT&T, T-Mobile, Sprint, Verizon, Cricket, Tracfone, Mint Mobile, etc.).
Comes packaged in an aftermarket box.
Please check with your carrier to verify compatibility.
Upon receiving the phone, insert a SIM card from a carrier that is compatible. Next, power on the device, connect it to a Wi-Fi network, and proceed to follow the instructions on the screen in order to activate the service.