Use APKPure App
Get Burn-In old version APK for Android
Burn-In your headphones
Headphones actually require a time of adjustment called 'Burn-In'. During this time you will notice an increase in sound quality about your headphones. And this app is designed to Burn-In the new headphones.
Please feel free to contact me (android@ykemail.com) if you found bugs, and thank you for your support! :)