Use iBuzz! Annoy your friends with the ultra high pitched noise or other buzz sounds. Features many different sounds with more coming in updates. Sounds Include: -Normal Buzzer -Low Frequency Buzzer -High Frequency Buzzer -Ultra High Frequency Buzzer -Dial Tone -Emergency Broadcast Tone -And More! ** Warning, please use responsibly, high volume sounds can damage hearing and equipment. Do not use iBuzz or any other sound app at full volume for prolonged periods of time **