very powerful, you can't just do a simple beep because it plays the sound you have selected in full, to select a sound you have to go out of town so they can't hear you and at the moment it honks you have to press your horn 3 times to change the sound and go to the next one. I installed a switch to also select the simple horn because it has a high volume and in the city it scares people. Also, it cannot work without the little board to place it somewhere alone. I don't think it's a good purchase unless you want a horn for weddings