Fisdemo hearing aids devices can help you hear different kinds of sound you missed before. therefore, in order to make you feel comfortable for our hearing aid. you need an adaptation process. please wear it according to our guidance. First Week Start to wear your hearing aids at quiet listening environments. we suggest Wear them for 1~2 hours per day. Second Week You might take a walk in the park or along the forest to catch various natural sounds such as birds chirping. you can hear different sounds clearer than before. Recommend Wear this hearing sound amplifier for 4~8 hours per days Third Week You try to wear hearing device to go to public areas with Noisy such as restaurants or train stations. but adjust the sound suitable volume level and mode 3 before go out. Recommend Wear it no more than 8 hours per day Forth Week Gradually increase your wearing time per day, until you start to feel comfortable for as long as you can. at this period. you can prepare to travel like beach vacation and catch various natural sounds from sea such as tide pushing, conch, wind etc. bring lots of fun voice to you by our hearing aids.