CYHT Hearing Test. Can You Hear These. Simple Fast

Hearing Test as Easy as 1, 2, 3. Test How Old Your Ears Are. CYHT is Simple Ears Tester App. Are Your Ears in Fit Condition? When listening to a personal music system with earphones at a maximum volume, the sound generated can reach a level of over 100 dBA, loud enough to begin causing permanent damage after just 15 minutes per day! Noise-Induced Hearing Loss.