first of all I want to thank him thoman for the service the packaging came very neat and it came quickly . I bought a speaker to start with and will get another one later .I have rented many speakers for my work this Alto can sit next to good speakers comfortably ,the bt it works perfectly,press both buttons together to stop her loud voice connected !!! the sound is quite clear and there is little wind in the lows . very good bass for a 10 inch speaker that shakes clothes it is quite light and a very high quality speaker thank you very much thoman