It can reduce the damage of your USB port by preventing frequent plugging and pulling. Magnetic design make you experience the best way to charge your phoneLED Indicator Built-in Blue LED indicator illuminates when the cable is active Ultra Durable Metal Port + Nylon Braid Wire, Makes Product durable and resists kink and tangles. Easy to charge The plug is separated from the cable. Plug can stay on the phone, Only 1 second connected to charge. Dust proof Plug The magnet connector could be a dust proof plug and prolong the life of your device. This Cable is only for charging, Not for data transmission.