160 Hz clean pure sine wave TEST TONE frequency

[@prboyd]

Just used this to clear the speakers in my iPhone that I thought were broken! Rub with a toothbrush and contact cleaner whilst playing this literally shook the grime off and speakers came back to life! Sweet :)

[@واصلااسالم]

1 خخ رخ خ😅

[@susiea1419]

Really relaxing

[@frarosj]

Okay risultato audio

[@yashassaip6147]

Bagundu

[@yashassaip6147]

Yes

[@yashassaip6147]

Yes 1:21 1:25 1:25 1:25 1:26 1:26 1:26 1:26