Tonor TM SJ4000 12MP HD 1080P Wifi Sports DV Action Waterproof Diving Camera 1.5 Inch Wide Angle Lens DVR Black A water-resistant casing that allows you to film fascinating water sports; water-resistant up to 30 meters under water . Wi-Fi Function, users can operate or review via Android or for iOS Device.(App installation required). Detachable battery that is easy to replace and prolongs your camera's service life.1 batteries included,1.5 hours working time per charge. 12-megapixel HD 170 degree wide-angle lens.Support storage cards up to 32GB maximum Support web camera function.Support HDMI HD output function; *Note:once enter TV-OUT mode, the screen will turn black,to turn off the mode, long press the down button.