Using a mobile phone while driving can be very dangerous and is prohibited in Spain. However, the use of **hands-free devices** is allowed, which enable talking without needing to touch the phone. Still, it is important to keep in mind that even with hands-free, part of your attention is diverted from the road to the conversation, which can increase the risk of accidents.

- **Distractions**: Using the phone while driving can make you pay more attention to the conversation than to the road, which can lead to errors such as misjudging distances or missing traffic signs. It can also cause you to veer off the road or invade opposite lanes.

- **Recommendations**: If you receive a call while driving, it is best to use a hands-free device and inform the person you are speaking with that you are driving. This helps the other person be aware of your situation and collaborate to keep the conversation brief and not too distracting.

- **Prohibitions**: It is prohibited to use the phone in a way that requires holding it with your hand or shoulder, as this makes steering difficult and increases the risk of accidents.

In summary, to minimize risks, always use a hands-free device and keep conversations short, informing your interlocutor that you are driving.