Xiaomi Pro 2 Electric Scooter – Black

2 (two) is a number, numeral and digit. It is the natural number following 1 and preceding 3. It is the smallest and the only even prime number.

Because it forms the basis of a duality, it has religious and spiritual significance in many cultures.

Black is a color that results from the absence or complete absorption of visible light. It is an achromatic color, without hue, like white and grey. It is often used symbolically or figuratively to represent darkness. Black and white have often been used to describe opposites such as good and evil, the Dark Ages versus Age of Enlightenment, and night versus day. Since the Middle Ages, black has been the symbolic color of solemnity and authority, and for this reason it is still commonly worn by judges and magistrates.

Black was one of the first colors used by artists in Neolithic cave paintings. It was used in ancient Egypt and Greece as the color of the underworld. In the Roman Empire, it became the color of mourning, and over the centuries it was frequently associated with death, evil, witches, and magic. In the 14th century, it was worn by royalty, clergy, judges, and government officials in much of Europe. It became the color worn by English romantic poets, businessmen and statesmen in the 19th century, and a high fashion color in the 20th century. According to surveys in Europe and North America, it is the color most commonly associated with mourning, the end, secrets, magic, force, violence, fear, evil, and elegance.

Black is the most common ink color used for printing books, newspapers and documents, as it provides the highest contrast with white paper and thus is the easiest color to read. Similarly, black text on a white screen is the most common format used on computer screens. As of September 2019, the darkest material is made by MIT engineers from vertically aligned carbon nanotubes.

Pro is an abbreviation meaning "professional".

Pro, PRO or variants thereof might also refer to:

Xiaomi Corporation (; Chinese: 小米集团), commonly known as Xiaomi, is a Chinese designer and manufacturer of consumer electronics and related software, home appliances, automobiles and household hardware, with headquarters in Beijing, China. It is the second-largest manufacturer of smartphones in the world, behind Samsung, most of which run on the MIUI (now Xiaomi HyperOS) operating system. The company is ranked 338th and is the youngest company on the Fortune Global 500.

Xiaomi was founded in 2010 in Beijing by Lei Jun along with six associates. Lei had founded Kingsoft as well as Joyo.com, the latter of which he sold to Amazon for $75 million in 2004. In August 2011, Xiaomi released its first smartphone and, by 2014, it had the largest market share of smartphones sold in China. Initially the company only sold its products online; however, it later opened brick and mortar stores. By 2015, it was developing a wide range of consumer electronics. In 2020, the company sold 149.4 million smartphones and its MIUI (now Xiaomi HyperOS) mobile operating system has over 500 million monthly active users. As of August 2024, Xiaomi is the second-largest seller of smartphones worldwide, with a market share of about 12%, according to Counterpoint. Its presence led some people to call Xiaomi the "Apple of China". It has come up with its own range of wearable items. It also is a major manufacturer of appliances including televisions, flashlights, unmanned aerial vehicles, and air purifiers using its Internet of things and Xiaomi Smart Home product ecosystems.

Xiaomi keeps its prices close to its manufacturing costs and bill of materials costs by keeping most of its products in the market for 18 months, longer than most smartphone companies. The company also uses inventory optimization and flash sales to keep its inventory low.