Voltage & Frequency: United States uses 120 volts AC, 60 Hz. This differs from most other countries which use 220-240V.
Plug Types: Type A and Type B (American standard)
Adapters: Visitors from Europe, Asia, Africa, and Oceania will need plug adapters to fit US outlets. Buy adapters before departure or at airport shops. Available at drugstores like CVS and Walgreens ($5-15).
Voltage Converters: Many modern electronics (laptops, phone chargers, cameras) are dual voltage (110-240V) and only need plug adapters. Check your device's label. Hair dryers, curling irons, and some appliances may need voltage converters if not dual voltage. Hotels often provide hairdryers.
USB Charging: Most hotels offer USB ports in rooms or at front desks. Miami International Airport has charging stations throughout terminals. Many restaurants and cafes have outlets available.
Important: Using high-wattage European appliances (like hair dryers) without proper converter can damage devices and create fire hazards. When in doubt, use hotel-provided appliances.