I have made a website that play the 100hz sine tone, also have a timer, so that you can give a try. A few users has already reported to me that it works~ Hope

I have made a website that play the 100hz sine tone, also have a timer, so that you can give a try. A few users has already reported to me that it works~ Hope it helps you: https://100hzsinetoneonline.1link.fun https://100hzsinetoneonline.1link.fun