wow I'm really impressed with this beautiful K&F Concept CM-500.I got this especially for my GoPro hero 4 silver and it really works great it also works for my Nikon d3300.the sounds is just nice it make me smile the first time I hear the audio is just better than other mics I haveI really love the mic it has nice clear professional sound and it weights only 3.5 oz well recommendedthis mic has a replaceable battery which is a cd2032 so it will not feed from our GoPro battery anlike the "rode go mic"or other mics.also better than the polar pro mic for GoPro.i really recommended for GoPro cameras because is hard to find a great mic for those specific cameras. I did have to use a cable adapter for gopro hero 4 but is easy to find that adapter is the only one that gopro hero 4 uses.this winner mic is made of ABS, and the Tube material is Aluminum alloy. the Wire screen material is Metal.the cable is attached to it so is not removable. the battery is very easy to replace.and the mic only has a 3 settings which are off 0db and +10db;the package is very nice as well and only cames with battery manual and mic Pop Filter/Wind Shield.it also has a light indicator.over all this is a must have mic for gopro well recommendedI received this item at a discounted price in exchange for my honest review