On December 14, 2006, the Ministry of Information Industry released the standard "Technical Requirements and Test Methods for Mobile Phone Chargers and Interfaces." The benefit of implementing this standard is that consumers do not need to purchase a new charger when changing phones; the same charger can charge different models of phones, and using the charging cable provided with the phone, one can also charge via a USB port on a computer. This not only reduces the cost of purchasing a phone for consumers but also provides more convenient usage. Therefore, the standard caused a huge response after its release. Liu Jun, one of the drafters of the unified standard and deputy director of the Wireless Communications Department of the Telecommunication Metrology Laboratory of the China Academy of Telecommunication Research under the Ministry of Information Industry, revealed that so far, the Telecommunication Metrology Laboratory has completed testing of new phone and charger samples applied for by 17 enterprises, totaling 21 products. These compliant products can conveniently charge each other, meaning that purchasing a charger from any of the above enterprises will allow charging among the 21 phones. "The Ministry of Information Industry has a unified plan for the launch of universal mobile phone chargers, and it is expected that they will be introduced as early as mid-year," revealed a person from Lenovo Mobile. It is reported that the types of phones submitted for testing cover GSM, CDMA, and China's independent 3G standard TD-SCDMA, among other existing wireless communication systems in China. However, it is noteworthy that the above manufacturers are all domestic brands. Liu Jun revealed that the phone companies that have completed charger testing include Bird, Lenovo Mobile, BBK, AUX, Konka, Haier, Hisense, Changhong, Gionee, ZTE, TCL, Jiangxi Huayu, and also Xiamen Xinsenhai and Longqi Technology, which specialize in producing China's 3G phones. In addition, two manufacturers specializing in producing chargers have also completed testing. Each phone and charger submitted for testing has been tested in terms of interface mechanical characteristics, interface electrical characteristics, interface reliability, cable characteristics, charger electrical characteristics, safety, electromagnetic compatibility, and environmental adaptability, ensuring that each phone is compatible with chargers of different power levels. In stark contrast to domestic phones strongly supporting the standard, international brands, which hold over 60% of the Chinese market share, are still waiting and watching. An industry expert exclusively revealed that in reality, some foreign brand manufacturers are very unenthusiastic and even question the necessity of formulating the standard.