... skiing, climbing, diving etcAccessories Lens, Camera grip, Handlebar grip, Helmet grip, USB cable, AV cable, Velcro strap(Short&Long), Silicon ... Two AA dry batteries (large volume rechargeable battery is better)11) Recommended players: Storm,Kmplayer,Mplayer and other media players ... 28.9cm)15) Accessories: Lens, Camera grip, Handlebar grip, Helmet grip, USB cable, AV cable, Velcro strap(Short&Long), ...