3.5mm External Microphone Mic Clip Lapel Tie With Mini USB Cable Adapter for GoPro Hero 3 3 Plus 4Feature:Clip-on microphone design、 convenient to useLow handling noise.Frequency Range: 35Hz ~ 18KHz.Signal\/Noise: 74dB SPLSensitivity: -30dB +\/-3dB \/ 0dB=1V\/Pa、 1kHzConnector: 3.5mm plug、 Mini USB plugCable length: 1.2mCompatible with GoPro Hero cameras、 perfect for 4 3+ 3 、 CamcordersPackage included:1 x Microphone for GoPro1 x USB Cable Adapter for GoProDetail pictures: