Sony DualSense Wireless Controller | PlayStation 5

5 (five) is a number, numeral and digit. It is the natural number, and cardinal number, following 4 and preceding 6, and is a prime number.

Humans, and many other animals, have 5 digits on their limbs.

PlayStation is a video gaming brand owned and produced by Sony Interactive Entertainment (SIE), a division of Japanese conglomerate Sony. Its flagship products consists of a series of home video game consoles produced under the brand; it also consists of handhelds, online services, magazines, and other forms of media.

The brand began with the first PlayStation home console released in Japan in 1994 and worldwide the following year, which became the first console of any type to ship over 100 million units, which made PlayStation a globally recognized brand. Since then there have been numerous newer consoles—the most recent being the PlayStation 5 released in 2020—while there have also been a series of handheld consoles and a number of other electronics such as a media center and a smartphone. The main series of controllers utilized by the PlayStation series is the DualShock, a line of vibration-feedback gamepads. SIE also operate numerous online services like PlayStation Network, the PlayStation Store, and the subscription-based PlayStation Plus, which may also offer non-gaming entertainment services; the PlayStation Network has over 103 million active users monthly as of December 2019.

The series also has a strong line-up of first-party games due to PlayStation Studios, a group of many studios owned by Sony Interactive Entertainment that exclusively developed them for PlayStation consoles. In addition, the series features various budget re-releases of games by Sony with different names for each region; these include the Greatest Hits, Platinum, Essentials, and The Best selection of games. It is also known for the four iconic PlayStation face buttons (, , , ) and has been known for its numerous marketing campaigns, the latest of which being the "Greatness Awaits" and eventually, "Play Has No Limits" commercials in the United States.

Sony Group Corporation (formerly Tokyo Tsushin Kogyo K.K. and Sony Corporation) is a Japanese multinational conglomerate headquartered at Sony City in Minato, Tokyo, Japan. The Sony Group comprises entities such as Sony Corporation, Sony Semiconductor Solutions, Sony Entertainment (including Sony Pictures and Sony Music Group), Sony Interactive Entertainment, Sony Financial Group, and others.

Sony was established in 1946 as Tokyo Tsushin Kogyo by Masaru Ibuka and Akio Morita. This electronics company became known early on for creating products such as the transistor radio TR-55 and the home video tape recorder CV-2000, playing a noteworthy part in Japan's post-war recovery. Ibuka retired from Sony in the 1970s with Morita then serving as chairman until 1994. During this period, Sony was one of the most recognized brands in the industry worldwide; the company was credited for a number of innovations, notably the Trinitron color TV, the Walkman portable audio player, and co-inventing the compact disc. It embarked on more diverse business ventures, acquiring the American CBS Records in 1988 and then Columbia Pictures in 1989, and later entering the home video game console market with PlayStation, the first of the eponymous brand. In Japan, Sony expanded into the financial sector. In 2021, Sony transformed into a holding company, handing over the name Sony Corporation to its subsidiary as the electronics company.

Sony, with its 55 percent market share in the image sensor market, is the largest manufacturer of image sensors, the second largest camera manufacturer, and is among the semiconductor sales leaders. It is the world's largest player in the premium TV market for a television of at least 55 inches (140 centimeters) with a price higher than $2,500 as well as second largest TV brand by market share and, as of 2020, the third largest television manufacturer in the world by annual sales figures.

Although not being a part of any traditional keiretsu, Sony has a weak tie to the Sumitomo Mitsui Financial Group (SMFG), which traces its roots to the Mitsui zaibatsu. This connection dates back to the 1950s when it was the only bank the company dealt with. Sony is listed on the Tokyo Stock Exchange (in which it is a constituent of the Nikkei 225 and TOPIX Core30 indeces) with an additional listing in the form of American depositary receipts listed in the New York Stock Exchange (traded since 1961, making it one of the oldest Japanese companies to be listed on an American exchange), and was ranked 88th on the 2021 Fortune Global 500 list. In 2023, the company was ranked 57th in the Forbes Global 2000.

Wireless communication (or just wireless, when the context allows) is the transfer of information (telecommunication) between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The most common wireless technologies use radio waves. With radio waves, intended distances can be short, such as a few meters for Bluetooth, or as far as millions of kilometers for deep-space radio communications. It encompasses various types of fixed, mobile, and portable applications, including two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking. Other examples of applications of radio wireless technology include GPS units, garage door openers, wireless computer mouse, keyboards and headsets, headphones, radio receivers, satellite television, broadcast television and cordless telephones. Somewhat less common methods of achieving wireless communications involve other electromagnetic phenomena, such as light and magnetic or electric fields, or the use of sound.

The term wireless has been used twice in communications history, with slightly different meanings. It was initially used from about 1890 for the first radio transmitting and receiving technology, as in wireless telegraphy, until the new word radio replaced it around 1920. Radio sets in the UK and the English-speaking world that were not portable continued to be referred to as wireless sets into the 1960s. The term wireless was revived in the 1980s and 1990s mainly to distinguish digital devices that communicate without wires, such as the examples listed in the previous paragraph, from those that require wires or cables. This became its primary usage in the 2000s, due to the advent of technologies such as mobile broadband, Wi-Fi, and Bluetooth.

Wireless operations permit services, such as mobile and interplanetary communications, that are impossible or impractical to implement with the use of wires. The term is commonly used in the telecommunications industry to refer to telecommunications systems (e.g. radio transmitters and receivers, remote controls, etc.) that use some form of energy (e.g. radio waves and acoustic energy) to transfer information without the use of wires. Information is transferred in this manner over both short and long distances.