【讨论】地铁“唱将”的专业装备

Photos about a group of beggars in Shanghai subway train shocked web users with their very complicated begging equipment. Usually beggars who sing songs only carry a small loudspeaker, but three female beggars in this picture are pushing a handcart on which there is a huge loudspeaker, two microphones and a laptop used to adjust the sound effect. When one of the beggars sings, the other two collect money from passengers. Is this too much?