h9 action camera ultra hd 4k / 30fps wifi 2.0" 170d 30m underwater waterproof camera helmet vedio sport go pro surfing rock climbing ex

features: 1, 2-inch tft lcd 2, h.264 full hd 1080p 3, adopt 140° wide-angle lens, bring us a fantastic wide-angle shooting experience 4, high speed usb2.0 5, a water-resistant casing that allows you to film fascinating water sports; water-resistant up to 30 meters under water; perfect for all kinds of underwater adventures 6, hd dynamic shooting, make the moving image more smooth, greatly reduce ghosting, make your digital life more splendid 7, loop recording 8, treble sfunction,retain the most beautiful moment