disc jockey dj mc mix mixing music music equipment party scratching stereo strobe strobe light angles appearance communicating communications communications-equipment concave connecting dish distant distinctive electrical-signals electromagnetic equipment exterior external height high light mobile-phones modern parabolic parabolic-reflector radio-waves receivers receiving round satellite-dish satellite-dishes sending Signals steel steel-structure technical technology telecommunications telephones tower towering transmission transmissions transmitters transmitting activities activity aim backboard background backing-board ball-game basketball basketball-basket basketball-board basketball-hoop black-and-white board frame game grayscale greyscale hoop image isolated mesh metal monochrome net outdoors park public recreation rectangles rectangular rim shoot shooting shot sport sporting-equipment strong target training weathered