【Bluetooth Shutter Control & Wide Compatibility】 Underwater phone housing fits smartphones from 5.4" to 6.9", compatible with iPhone 7–17 series (Pro/Pro Max/Plus/Mini), Compatible with Samsung Galaxy S10–S26 (Plus/Ultra), Note 8–20, A33–A36, A51–A56, and most Android devices. Certified IP68 waterproof, supporting dives up to 20 meters (65 feet). Note:​ Touchscreen functionality is disabled underwater; utilize the physical buttons on the handle for shooting and recording. For optimal performance, set your phone's auto-lock to "Never" prior to submersion. 【Optical Lens & Clarity】 The lens port features premium optical glass (up to 4.4" size) with 97% visible light transmittance. This preserves true-to-life underwater colors while maintaining the dynamic range needed for professional post-production color grading. 【Vacuum Seal & Anti-Fog Design】 Features a seamless, one-piece integrated construction. Equipped with a one-way air valve and vacuum pump, it extracts up to 99.6% of internal air to create a true vacuum seal, effectively preventing lens fogging during use. The ergonomic, non-slip grip is modeled after professional DSLR cameras for secure handling in wet conditions. 【Ergonomic Control System】 Once paired via Bluetooth, the housing allows full control via five mechanical buttons operated by the index finger. Basic Functions:​ Shutter/Pause, Zoom In/Out, Photo/Video Mode Switch. Advanced Features:​ Press and hold for 2 seconds to switch between front and rear cameras; press and hold for 2 seconds to wake the camera from sleep mode. 【Package Contents & iOS Setup】 Package Includes:​ Diving Handle x1, Vacuum Pump x1, USB Charging Cable x1, Safety Wrist Strap x1, Cleaning Cloth x1, User Manual x1. iOS Initial Setup: To unlock all features on iOS devices, configure the following: Go to Settings → Accessibility → Zoom → Zoom Region (Full Screen Zoom) → Turn on Zoom.