Information for your safety and comfort58• Never use it under sporting, exercising, or any vibrating environment whichwill probably cause unexpected short current or damage devices, and evenexposure risk from Lithium-ion battery pack.CAUTION: ListeningTo protect your hearing, follow these instructions.• Increase the volume gradually until you can hear clearly and comfortably.• Do not increase the volume level after your ears have adjusted.• Do not listen to music at high volumes for extended periods.• Do not increase the volume to block out noisy surrounding.Using electrical power• This product should be operated from the type of power indicated on themarking label. If you are not sure of the type of power available, consult yourdealer or local power company.• Do not allow anything to rest on the power cord. Do not locate this productwhere people will walk on the cord.• Do not overload a power outlet, strip or receptacle by plugging in too manydevices. The overall system load must not exceed 80% of the branch circuitrating. If power strips are used, the load should not exceed 80% of the powerstrip’s input rating.Product servicingDo not attempt to service this product yourself, as opening or removing covers mayexpose you to dangerous voltage points or other risks. Refer all servicing to qualifiedservice personnel.Unplug this product from the wall outlet and refer servicing to qualified servicepersonnel when:• the plug is damaged, cut or frayed• liquid was spilled into the product• the product was exposed to rain or water• the product has been dropped or the case has been damaged• the product exhibits a distinct change in performance, indicating a need forservice• the product does not operate normally after following the operatinginstructionsNOTE: Adjust only those controls that are covered by the operating instructions, sinceimproper adjustment of other controls may result in damage and will often require extensivework by a qualified technician to restore the product to normal condition.