Air Coolers
Air cooling is a method of dissipating heat. It works by expanding the surface area or increasing the flow of air over the object to be cooled, or both. An example of the former is to add cooling fins to the surface of the object, either by making them integral or by attaching them tightly to the object's surface.
Active filters
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.
An IP68 rating means a device can survive against dust and up to 1.5 metres of water for 30 minutes. IP67: Offers a similar level of protection against dust as IP68. The main functions of the kids phone watch include Real Time GPS Position, phone call, video call, SOS Call, Voice Chat, Pedometer, Historical Route etc.