Philips NP2500 Quick start guide - Page 18

level before your hearing adapts and leave it there. To establish a safe volume level: Get your volume control at a low setting. Slowly increase the sound until you can hear it comfortably and clearly, without distortion. Listen for reasonable periods of time: Prolonged exposure to sound, even at normally 'safe' levels, can also cause hearing loss. Be sure to use your equipment reasonably and take appropriate breaks. Be sure to observe the following guidelines when using your headphones. Listen at reasonable volumes for reasonable periods of time. Be careful not to adjust the volume as your hearing adapts. Do not turn up the volume so high that you can't hear what's around you. You should use caution or temporarily discontinue use in potentially hazardous situations. Do not use headphones while operating a motorized vehicle, cycling, skateboarding, etc.; it may create a traffic hazard and is illegal in many areas. 16 Environmental notices Class II equipment symbol: This symbol indicates that this product has a double insulation system. Modifications Modifications not authorized by the manufacturer may void user's authority to operate this product. Notice of compliance For USA: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.These limits are designed to provide reasonable protection against harmful interference in a residential installation.This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equip-