Beijing Temp Electronic Technology Development Co., Ltd. is a company specializing in the design, development and sales of home theaters. Its main brand, BNTN Pentium Audio (Chinese registration "Wanma Pentium") is one of the brands in China that launches set audio theaters. The company has been developing and expanding over the past few years, extending the slogan of stabilizing and developing Beijing to the whole country.

In 2000, Shanghai Longteng Electronic Technology Development Co., Ltd. was established to sell BNTN products in East China with Shanghai as the center. In 2001, sales branches were established in Tianjin, Chengdu and Chongqing. At the same time, Pentium Audio's franchise stores in Xi'an and Lanzhou were also put into operation. In 2003, Pentium Audio established branches in Guangdong (the hometown of the audio industry) and Shenzhen, the forefront of reform. In March 2004, Pentium Audio established a branch in Wuxi City, which is located in the central part of the economically developed Yangtze River Delta, bordering the Yangtze River to the north and the third largest freshwater lake in China, Taihu Lake, and in the same year, the brand store in Ningbo, Zhejiang was also established. In operation, the company has established a professional brand image promotion agency in Guangdong to promote BNTN brand across the country.

Pentium Audio has become a national brand. Products cover Beijing, Shanghai, Tianjin, Chongqing, Chengdu, Shenzhen, Dongguan, Zhuhai, Zhongshan, Guangzhou, Nanjing, Wuxi, Suzhou, Zhangjiagang, Nantong, Xi'an, Zhengzhou, Henan, Changsha, Jiangxi, Zunyi, Lanzhou, Guiyang, Hangzhou, Shenyang . Pentium Audio maintains a good cooperative relationship with national electrical appliance chain companies Gome, Dazhong, Suning and Yongle. At the same time, BNTN Pentium Audio is ranked among the best in sales in various places and is favored by consumers. It has more than 430 direct chain stores in China to serve consumers.

Currently, the product line of Pentium Audio includes home theater, aluminum column speaker, professional karaoke (stage audio and stage amplifier) ​​professional boxes, garden art speakers, active box, car theater, mini speakers, which can meet the majority of consumers' need.

Three major slogans of Pentium Audio: 1. High technological content, 2. Strong sense of fashion, 3. Healthy, stable and sustainable development.