User manual PANASONIC RP-HC31

[. . . ] Hearing experts advise against continuous extended play. If you experience a ringing in your ears, reduce volume or discontinue use. [. . . ] Do not recharge ordinary dry cell battery. Remove the battery if the unit is not to be used for a long time. Do not leave the battery in an automobile exposed to direct sunlight for a long period of time with doors and windows closed. Mishandling of battery can cause electrolyte leakage which can damage items the fluid contacts and may cause a fire. ) (Neodymium) Impedance: 20 Sensitivity: 100 dB/mW (1 kHz, OPR ON), 100 dB/mW (1 kHz, OPR OFF) Frequency response: 8 Hz - 22, 000 Hz Level of noise reduction: 83 % (more than 15 dB) (Approx. ) (without controller and cords) Note The actual life of the battery depends on operating conditions. Specifications are subject to change without notice. Environmental noises in airplanes, trains and buses, and noise caused by air-conditioners is reduced by 83%, providing a quieter listening environment. This function allows you to enjoy music without raising the volume too high, and is, therefore, kinder to your ears. This unit mainly reduces low-frequency noise: as such, sounds with relatively high frequency components such as car horns, telephone ringers and people's voices may not be attenuated very effectively. While you are listening to music using the stereo earphones, you can choose to hear through the earphones the ambient sound that is input from the microphone, instead of the music. A 1 Air plug adaptor (RFX3002) b 1 Ear piece set (RP-PD2) c 1 Carrying pouch (RFX7039) For the United Kingdom only: Use numbers indicated in parentheses when asking for replacement parts. [. . . ] Nettoyez alors la prise Clean the plug with a soft dry cloth if this occurs. The ear pieces can deteriorate after long · Discontinue use if you experience discomfort. [. . . ]