2 in 1 Waterproof Protective Housing Case Diving Box + External Mini Stereo MIC Microphone with 17CM 3.5mm to Mini USB 10 Pin Adapter Cable for GoPro HERO 4 / 3+ / 3, Microphone Size: 5.5 * 5.5 * 1.5cm

1. This stereo microphone will dramatically increase the sound quality of your footage.

2. The microphone picks up a greater range of sound frequencies compared with the internal.

3. Equipped with housing case, this housing helps you prevent your lens from dust, sand, rocks, mud, dirt......so you don not end up with bad footage of that adventure, just because you let the lens get all chewed up all. Ballistic friction fit lens cover.

4. Suitable for GOPRO HERO 3 3+ 4 action cameras.

5. The adapter cable has the L-shaped gold-plated mini plug.