You can adjust it with the adjustable volume control under the earmuff. If you have turn the volume to Max. on the de...
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Update: The following guide only applies to MS760 or MS900 sold before October 1st, 2019. For MS760 or MS900 sold aft...
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Please refer to this Gif:
Insert the earbud into the ear canal
Twist the earbud so that the fin and the bottom of th...
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