Review Content Will improve your game So easy in practice or games for bad habits to creep in. I liked that i dont have to set up a camera to play back what Im doing. The feedback is really helpful and this is so light it doesnt hinder mt game at all. Good Gift Choice This was an excellent gift choice for my grown son who is quite a tennis player and enthusiast. He was really pleasantly surprised to find the Zepp Tennis Swing Analyzer under its wrappings. The following "Thank you!" was spoken in a sincere tone, and my heart sang.