Want to annoy someone sitting next to you... without them really knowing what's going on? 
This app is for you. Tune it to 16000 hz, and see if they can hear it... and how long they can stand it!!
You can also use it to test your hearing. See where you stop hearing certain frequencies.
If that's not enough, you can use them as a ringtone!! Yes, that's right. Get the perfect frequency as a ringtone. Let me know what you think!
App store: BoomButton Price: FREE!!!!!
This app is for you. Tune it to 16000 hz, and see if they can hear it... and how long they can stand it!!
You can also use it to test your hearing. See where you stop hearing certain frequencies.
If that's not enough, you can use them as a ringtone!!
Yes, that's right. Get the perfect frequency as a ringtone. Let me know what you think!App store: BoomButton Price: FREE!!!!!