most modern phones do not have infrared anymore. This technique was used with old phones to transfer data wireless form phone to phone or from the phone to the computer. However this technology is now deprecated because it was too slow.
There are new protocols for the technology making it much more effective then it use to be and also much faster but manufacturers have not embraced this.
Infrared rays are used in television remote controls
Instruments for detecting infrared radiation include heat-sensitive devices such as thermocouple detectors, bolometers, photovoltaic cells, and photoconductors.Pranay karnatak
Radio waves
Infrared rays are found naturally in sunlight and can also be generated by objects that emit heat, such as fires and human bodies. Additionally, infrared rays are used in various technologies, including night-vision goggles, remote controls, and infrared saunas.
Examples of infrared rays include heat radiation from a fire, body heat emitted by humans and animals, and infrared lamps used in therapy. Infrared rays are also emitted by the sun and can be used in technologies like infrared cameras and communication devices.
One of the technologies used in mobile phones is a fractal aerial design.
Radio waves, microwaves, infrared and visible light can all be used for communication. Radio waves – are used to transmit television and radio programs. Microwaves – are used to transmit satellite television and for mobile phones. Infrared – is used to transmit information from remote controls.
Simple Mobile has a variety of phones on their website that are compatible with their service. Phones that are compatible with T-Mobile can also be used with Simple Mobile.
generally infrared rays or microwaves sometimes are used in a Bluetooth but it depends upon the usage,speed, and range for low range and less efficiency infrared rays are use whereas for high intensity and range microwaves are used.
None, mobile phones arent made up of minerals
Used mobile phones can be bought from online trading and bidding sites such as eBay or at T-Mobile stores. Many local classified newspapers and websites also offer used mobile phones for sale.
Bar code scanners use infrared rays to illuminate the bar code, which is then read by a sensor that detects the reflected light. X-rays are not typically used in bar code scanners due to safety concerns related to exposure to radiation. Instead, infrared rays are commonly used as they are safe and effective for reading bar codes.