DOES THIS DEVICE NEED A SIM CARD: Yes it does Being that this device is GSM unlocked it will work on any GSM Network with a Nano size SIM Card The sim card does not come included, you will need to contact your Network Provider to acquire your complimentary Sim card (Free from most Carriers with activating of an account).
WHAT NETWORK FREQUENCIES ARE SUPPORTED BY THIS DEVICE: The Hotspot will support the following Technology UMTS/HSPA+ 850/1700/1900 LTE Bands 2, 4, 5, 12, 29, 30, 66. Please contact your network Provider (prior to purchase) and inquire if they support these bands in your area to ensure the device will work Properly.
ADAPTIVE CHARGING: Batteries are delicate and properly handling them is of utmost importance, therefore as of 12/1/2019 ZTE MF985 sold by Energy Electronics include an adaptive charger (STC-A521A-Z) I.E. a charger that charges at different rates depending on how much charge is in the battery, And once the battery is fully charged the charger lowers the Amperage to only provide for the use of the device and not to charge the battery so that the battery stays healthy and will not decay or expand,
WHAT DOES UNLOCKED REALLY MEAN: Unlocked devices are compatible with GSM carriers the kinds that Use SIM Cards for Service like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers) Unlocked Devices will not work with CDMA Carriers the kinds that don't use sim cards for service like Sprint, Verizon, Boost or Virgin (contact your network provider prior to purchasing for verification that they support GSM frequencies).
PSA: Standard Max charging time is 10 hours. (with the adaptive fast charger enclosed STC-A521A-Z there is no charge limits) Do not leave device plugged in once it has been fully charged if using a standard charger. Overcharging the battery may lead to overheating and battery malfunction. !!!NO CONTRACT NO COMMITMENTS!!!: This is your Hardware NO need to commit to any network (WILL NOT WORK ON VERIZON OR SPRINT),