Acousto-Optic LED Ultrasonic Solar birds repeller with wall mount

The bird repellent works well. The problem is that the sound is quite loud. I am afraid I may scare my neighbours along with the birds. Good product however

Good repeller. Have seen few times by myself how a pigeon approached the item and got scared away with flash and maybe sound (have not heard the sound, so not sure). But it does not deter birds all the time, only when some of them approch closer to the sensor.