Bose Aviation Headset X Owner's guide - Page 19
Wearing it properly, Conditions related to fit - deals
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USING YOUR HEADSET Wearing it properly Proper fit on your head is important both for comfort and good noise reduction performance. Here are a few guidelines: Figure 16 Matching the R and L markings to your right and left ears • Use the left (L) and right (R) markings above the earcups to orient the headset properly (Figure 16). R L • Use a light grasp to adjust each earcup so its cushion is completely over your ear and you feel an even, gentle pressure all around it. • Adjust the headband so it rests gently on top of your head. Make your final adjustments in a noisy environment and with the power switch set to ON. Conditions related to fit A low rumbling sound or frequent brief losses of active noise reduction (ANR) may indicate an improper fit or blocked earcup ports. Refer to "Headset Care and Maintenance" on page 25 for instructions on how to deal with a blockage. In very loud conditions, such as during takeoff, you may experience brief reductions in ANR as the headset compensates for a momentary pressure change. If this problem continues when the sound level returns to normal, however, refer to "In case of difficulty" on page 30. If the problem persists, contact the Bose® Aviation Headset Department for assistance. During a long flight, you may feel a slight pressure point, which can be relieved by adjusting the headband position. Your experience with using the headset will help establish a sense of how it should sound and feel. 19