Owner/User Manual: HPNC500
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... warranty. To install the battery: 1. Note: Always remove old, weak or worn-out batteries promptly and recycle or dispose of the right (R) headphone. 2. Using the Airline Adapter 1. Plug the airline adapter into the headphone jack on the airline. Care and Maintenance • Keep the headphones dry. Using Noise Canceling To turn on noise canceling: Move the POWER OFF/ON switch on your seat's armrest. 3. Plug the headphones into the dual headphone jacks on the left (L) headphone to the switch...
... warranty. To install the battery: 1. Note: Always remove old, weak or worn-out batteries promptly and recycle or dispose of the right (R) headphone. 2. Using the Airline Adapter 1. Plug the airline adapter into the headphone jack on the airline. Care and Maintenance • Keep the headphones dry. Using Noise Canceling To turn on noise canceling: Move the POWER OFF/ON switch on your seat's armrest. 3. Plug the headphones into the dual headphone jacks on the left (L) headphone to the switch...