KTP18 Trigger Pole for GoPro HERO3+ and HERO4 Easy one-handed camera control, even for selfies. No remote control or batteries needed, instant camera response with zero delay. Stainless and aluminum spring return trigger mechanism handles the harshest environments. Works with and without our KSD6 Dome Port and KDF filters for the ultimate over/under and diving combination. Compatible with GoPro HERO3+, HERO4 and Blackout Housings.