No need to connect APP, directly connect Phone can operate phone to photography underwater
Basically can fit for all Phone Within 7 Inch , more details contact us feel free

IMPORTANT: INTERNAL SPACE: 175mm(L)x85mm(W)x8mm(D)
LENS WINDOW: 68mm*68mm
Before purchase, you can evaluate if your smartphone fits the housing by checking the internal dimensions of the housing

Compatible with
iPhone 11/12/13, iPhone 12/13 Pro, 12/13 Pro Max, 12/13 Mini, iPhone 14,
Android Cellphones whose camera position is the top left corner, for Huawei Samsung, Oppo, Xiaomi, Vivo, Realme, Oneplus Smartphone, etc

Support System：
IOS 13.0.0 and above
Android 7.0.0 and above
HarmonyOS 2.0.0 and above

Specification:
Waterproof Depth - 40m/130Ft
Waterproof index - IPX8
Applicable Temperature: 0°-40°

Functions:
Starting from 15-20 ft Underwater, red color starts to wash out by the filtering effect of water, the deeper you dive the more of the warm red spectrum is filtered out from the ambient light.
In order to get warm colors back, you need to filter out blue spectrum with this filter/ Darken the blue sky/ Sea and increase contrast with clouds
It is used to restore the warm color absorbed by blue water and you can make nice colorful pictures and videos.

Package Including:
1x Underwater case for Andriod and iPhone
1x 67mm thread Adapter Ring
1 x 67mm Red Filter
1x Vacuum Pump handle
4x antifog sheets
1x wrist strap and 1x Spare O'ring
1x User manual
1x Cleaning cloth