GoPro HERO3 Camcorder External Microphone Vidpro XM-L Wired Lavalier microphone - Designed for use with Gopro&reg; Hero4, Hero3+, Hero3 and Hero2 cameras You can plug-in hero camera directly, no need 3.5mm adaptor. it help you get stoere music or vioce when use The frame/Protective case. It is designed for video use and provides clear and accurate voice reproduction. Newscaster-style design provides effective omni-directional pickup pattern. This is the best performance+cost value available for your complete video needs. Unit is extremely lightweight, designed for optimum portability and comfort, and delivers some of the clearest recorded sound you can find. This Microphone performance is much better than most built-in camera microphones: outstanding for interviews, podcasts, dictation, and much more. This microphone is a workhorse, never get caught with mushy, muffled sound again. Compatible with GoPro Hero 3 3+, NOT for other models.