比影石官方更生动的讲解，三种自拍杆对比，一次性弄明白入手哪款

影石官方推出的三款自拍杆到底有什么区别，功能是什么，什么场景适用，这期视频里面一次性讲解。In this video, what is the difference between the three official selfie sticks, what are the functions, and what scenarios are applicable, are explained in this video.