... ) record video and audio synchronously, USB drive, web camera Mini Sport Diving DVR(hidden camera)Main function: record video and audio ... *57*28mm Player: Storm, KMplayer, Mplayer and others For various sport activities to use: bicycling, skiing, climbingOperation systems: No need for ... , Vaseline,Rubber belt,Nylon strap, Rounded bracket ,Flat base Mini Sport Diving DVR