Lenovo A680 User Manual

Also see for A680: User manual Quick start guide

13Limitation Values). Using headphones that do notcomply with EN 50332-1 can be dangerous due toexcessive sound pressure levels.Explosive atmospheresDo not charge or use Lenovo Phone in any area with apotentially explosive atmosphere, such as at a fuelingarea, or in areas where the air contains chemicals orparticles (such as grain, dust, or metal powders). Obeyall signs and instructions.Radio frequency interferenceObserve signs and notices that prohibit or restrict theuse of mobile phones (for example, in healthcarefacilities or blasting areas). Although Lenovo Phone isdesigned, tested, and manufactured to comply withregulations governing radio frequency emissions, suchemissions from Lenovo Phone can negatively affect theoperation of other electronic equipment, causing themto malfunction. Turn off Lenovo Phone or use AirplaneMode to turn off Lenovo Phone wireless transmitterswhen use is prohibited, such as while traveling inaircraft, or when asked to do so by authorities.Medical devices