Special for GoPro Hero 3 / 3+ / 4, no need of 3.5mm converting cable, equipped with sponge cover to reduce the wind noise and make more clear sound when used in outdoor. With mini USB, 10pin, suitable for Hero 3 / 3+ / 4; With 1.9m cable, convenient for connecting sefie monopod and recording at a distance (Notice: 1.2m cable is not long enough for connecting selfie monopod); Braided nylon cable, durable, not easy to be aging and fracture; Operating voltage: DC 1.5V~10V.