Since the camera in the waterproof case fails to focus underwater, it is not suitable toshoot images underwater.You can record audio while the camera is in the waterproof case, but the sound level isreduced.Thread a suitable cord through the leash attachment hole of the waterproof case, thenattach the cord to an item you intend to use with the camera.[11] How to use Getting Started Using the Waterproof CaseOn waterproof performance of the waterproof caseWhen the camera is inserted in the supplied waterproof case, the waterproof performanceis as follows.FDR-X1000V (SPK-X1) is operable up to a water depth of 10 m for 60 minutes.HDR-AS200V (SPK-AS2) is operable up to a water depth of 5 m for 30 minutes.The waterproof performance is based on the testing standards of our company.Do not subject the waterproof case to pressurized water, such as from a tap.Do not use the waterproof case in hot springs.Use the waterproof case in the recommended operating water temperature range of -10°C to +40 °C (14 °F to 104 °F).Sometimes waterproof performance is lost if the waterproof case is subjected to a strongshock such as from being dropped. We recommend the waterproof case be inspected atan authorized repair shop (chargeable).Not to withstand continuous submersion or harsh environmental situations.Using an anti-fog sheet (AKA-AF1 (sold separately))