Televisions
Television signals were initially distributed only as terrestrial television using high-powered radio-frequency television transmitters to broadcast the signal to individual television receivers.
The unibody model debuted in October 2008 in 13- and 15-inch variants, with a 17-inch variant added in January 2009. Called the "unibody" model because its case was machined from a single piece of aluminum
iPhone 13 Pro was made for low light. The Wide camera adds a wider aperture and our largest sensor yet — and it leverages the LiDAR Scanner for Night mode portraits. Ultra Wide gets a wider aperture, a faster sensor, and all-new autofocus. And Telephoto now has Night mode.
Waterproof means that the device is not adversely affected by contact with water and can withstand water contact without becoming damaged.