Observe signs and notices that prohibit or restrict the use of mobile phones (for example, in healthcare facilities or blasting areas). Although the Lenovo Phone is designed, tested, and manufactured to comply with regulations governing radio frequency emissions, such emissions from the Lenovo Phone can negatively affect the operation of other electronic equipment, causing them to malfunction. Turn off the Lenovo Phone or use Airplane Mode to turn off the Lenovo Phone wireless transmitters when use is prohibited, such as while traveling in aircraft, or when asked to do so by authorities.