Forget インスタ 人気投稿 コツ: 10 Reasons Why You No Longer Need It
http://andyldbt333.iamarrows.com/14-common-misconceptions-about-insuta-ren-qi-tou-gao-arugorizumu
Even cables with built-in repeaters usually permit for an exterior power supply to be connected. That is just a bit extra safety to your signal and will be a good idea based on the condition by which the repeater