Take Photos That Are Half Water And Half Empty, And The Simple And Design Makes Easy The Semi-Circular Spherical Dome Pushes Open The Water Surface To Allow The Lens To Have Enough Field Of View, So That It Can Objects Above And The Water, Giving You A Very Good Experience. Take Great Pictures If You Just Use A Simple Camera To Take Photos That Are Half Underwater And Half Of The Water, It Is Difficult To Take Good Photos, Because The Water Boundary Blocks The Perspective Underwater Things Are Distorted And Deformed, And Water Will Enlarge Objects Like A Convex Lens, So If You To Balance These Things, You Must Use The Spherical Dome Of The Dome Port Semicircle To Push The Water Surface, So That The Lens Has Enough Field Of View, So That You Can Objects Above And The Water, Giving You A Very Good Experience. Great Pictures. Water Will Expand The Objects In The Water Like A Convex Lens, Direct Will Make The Objects In The Water Become Distorted And Larger, Compared To The Objects On The Water Surface, So That The Photos Taken Are Very Incongruous, The Use Of Dome Port Can Be Well Coordinated Underwater And Surface Objects, So That The Photos Taken Are Normal, Giving You A Real World. 50/50 And Above And Underwater Effect: The Waterproof Sphere Presets The On The Back To Help You 50/50 Above And The Water Surface At The Same Time. The Wide-Angle Lens Allows You To Capture More Realistic Images, Zoom In Trigger Button Design: Zoom In Operation Button Design, With Ease. The Shutter Button Is Long Enough So It Is Very Convenient To Press It At Any Time 1. Model: XTGP559 2. Size: 18 x 24.5 x 10.5cm 3. Material: ABS/Acrylic color: as shown Package Contents: 1 x ng Mask 1 x Ball Cover Protective Cover 1 x Storage Bag Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.