The rules regarding the use of electronic devices on board can vary depending on the airline and the stage of the flight. Here are some general guidelines to keep in mind: 1. Airplane mode: It is typically required to switch your electronic devices to airplane mode or turn them off completely during takeoff and landing. 2. Portable electronic devices (PEDs): Once the aircraft reaches cruising altitude, most airlines allow the use of PEDs such as smartphones, tablets, e-readers, and laptops. 3. Wi-Fi and cellular connectivity: Some airlines offer in-flight Wi-Fi or cellular connectivity, allowing you to use your devices for internet access or calls. However, this service may come at an additional cost. 4. Large electronic devices: Larger devices like laptops may need to be stowed securely during takeoff and landing, either in the seat pocket or an overhead bin. 5. In-flight entertainment systems: Many airlines offer personal screens or entertainment systems for passengers to use during the flight. These devices are typically available once the aircraft reaches cruising altitude. 6. Bluetooth and wireless devices: The use of Bluetooth and wireless devices, such as headphones or keyboards, is generally permitted throughout the flight, as long as the device itself is in airplane mode. 7. Restrictions on specific devices: Some airlines may have specific regulations on devices like hoverboards, e-cigarettes, or drones. Ensure you are aware of any restrictions or guidelines pertaining to such devices. 8. Safety instructions: Always pay attention to the safety instructions provided by the cabin crew, as they may include additional guidelines or restrictions regarding electronic device usage. 9. Exceptions: In certain situations, such as medical devices, airlines may allow the use of electronic devices that are typically prohibited. It is advisable to contact the airline in advance to inquire about any necessary documentation or procedures. 10. Compliance with crew instructions: In all cases, it is important to comply with the instructions of the cabin crew regarding electronic devices, as they have the authority to enforce safety regulations onboard the aircraft.