I hear a continuous noise "yiiiiii" on my 2 bedside lamps.
First lamp : i choose purple or green color or sunset mode with yeelight application (last version : 1.5.5_0164)
Seconde lamp: i choose flux colors or red or green with yeelight application (last version : 1.5.5_0164)
I tested my second lamp without update (1.4.8_150) and neither yeelight application and the noise do not appear (except sometimes during change color (1s) but not in continuous)
Android application 3.1.11
US server ( I live in France)
Id : 1740902220