Eustachian Ear Pressure Balancer, Tinnitus Relief for Ringing Ears | Air, Dive and Altitude Use | Safe Ear Relief | White

I had one that required batteries, but I got this one because it’s rechargeable and weighs less. You put it up to one nostril, push the other closed, turn this on and then swallow. https://www.amazon.com/dp/B0F1LY3MCS?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_3