Qin Feng used a smartphone called " Tang 1 " in the Chinatown case. This phone was depicted in the movie as very advanced with various advanced functions including Face Recognition, voice recognition, Gesture Recognition, and so on. In addition, Dunn One was the only smartphone left in the Chinatown detective team, so it became an important prop in the movie.
Qin Feng's smartphone in Detective Chinatown 2 was a Xiaomi 6.
Liu Haoran used a black iPhone 8 Plus in the Chinatown case. The phone was showcased in the movie as gorgeous and had a high-resolution camera and powerful performance.
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In Detective Chinatown 2, Qin Feng was using a black pair of quality-compatible QSSD8065 earphones. These earphones had high sound quality, noise-canceling functions, could be charged, and supported multiple ports.
Qin Feng used an iPhone 8 Plus in Detective Chinatown 2.
The phone Liu Haoran used in the Chinatown case was a Galaxy Note 8.
Detective Chinatown 2 was a suspense comedy film about Tang Ren (played by Wang Baoqiang) and Qin Feng (played by Liu Haoran), a pair of partners who started an investigation in New York's Chinatown. Qin Feng was a young detective. He came to the United States with Tang Ren to participate in a famous detective competition in order to find the murderer of his seventh uncle's grandson. Liu Haoran played the role of Qin Feng in the film. His performance was impressive and showed Qin Feng's smart and witty side. His character played a key role in the development of the story. Detective Chinatown 2's storyline was compact and had plenty of jokes. At the same time, it also incorporated some feng shui elements and real-life filming in New York, bringing many surprises to the audience. Overall, the roles of Liu Haoran and Qin Feng added a lot of charm and fun to the movie.
Qin Feng was wearing a Bose Sound Liberty 50 headset during the Chinatown investigation. This headset was produced by the American noise-canceling headset manufacturer Bose. It was first introduced in 1982 and was a classic noise-canceling headset. It had four microphones that could capture the surrounding noise and filter and synthesize it through the built-in processor to provide a clear and pure voice call and music playback experience. The current price of the Bose Sound Liberty 50 on the second-hand market was about $100.
In Detective Chinatown 2, Qin Feng used a reasoning method called Spatial Reasoning to calculate Song Dan's location. Spatial reasoning referred to using the relationship between time and space to infer the location of the target by analyzing clues and evidence. Qin Feng used this reasoning method to deduce Song Dan's location in Detective Chinatown 2. He observed the map, recalled the previous plot, analyzed the clues and details, and inferred the possible area where Song Dan was. Finally, he found her location. Spatial reasoning was a very practical reasoning method that could help detectives quickly find the location of the target in a complex environment. It was one of the essential skills for detectives to solve complicated cases.
In the film series, Qin Feng was played by Liu Haoran.