(DISCONTINUED) Cleaning, safety and maintenance Clean the headset, including the headset boom and ear loop piece, by wiping with a slightly damp cloth as required. Dampen the cloth with only water and a little washing-up liquid if needed. Avoid getting moisture or liquid into any button sockets or other openings. The base and cords may be dry-dusted as required. The ear cushion and ear plate may be cleaned or replaced. When cleaning, use water only and a little washing-up liquid if required. • To clean or replace the ear plate, first remove the ear plate from the headset receiver. • To clean or replace the headset’s ear cushion, gently peel it off the ear plate. • Do not immerse the GN 9120 in water. • For your convenience, replace ear cushion once a year.