Our factory provides 7" ,9" wired and wireless quad rear view mirror monitors.Really help you see the image behind your vehicle when you are reversing.
7/9/10.1 inch quad monitor has a pixel resolution of 800 x 480 /1024*600 and displayed is a sharp clear digital image. Monitor has 2 Channel Video Input; V1/V2 optional. PAL&NTSC for choose. Monitor automatically turns on and switch to Rear View Camera when reversing.
7-Inch TFT LCD quad screen Monitor with Built-in Wireless Receiver-- High resolution image and full color display.
surport 4 channes backup camera.l
Backup Camera Screen,Digital Quad Color Monitor,Quad Backup Camera System,Quad Backup Camera Monitor Shenzhen Sunveytech Co.,LTD , https://www.sunveytech.com
Quality: 
As a TV, its most direct and essential function is to watch. Only higher picture quality can bring us better visual enjoyment. Currently, most smart TVs on the market are often used on the screen. Both of these specifications are 1080P and 4K. Because of the price factor, the current share of 1080P smart TVs is the highest, and the 4K display pixels have reached 4 times the 1080P. From the actual viewing effect, if your home TV is greater than 50 inches , 4K TV will bring better visual effects than 1080P TV. 
In addition 4K TV has RGB mode and RGBW mode, we think that a good 4K TV must use RGB mode TV panel, and RGBW mode panel more people call it pseudo 4K, because of the RGB TV panel, its pixels It consists of three sub-pixels: red (R), green (G), and blue (B). The RGBW TV panel, which adds white sub-pixels to the RGB color standard, can reduce RGB pixels while improving brightness. Therefore, RGBW greatly reduces the number of backlight components. After many tests and comparisons, the RGBW mode TV, although marked with 4K, actually has a resolution of only 3/4 of 4K resolution, that is, 2880×2160. Meet the 3K standard.
In addition to the intuitive and visual difference in resolution, high contrast, high brightness, high color gamut, and the absence of Ultra-Clear Motion motion image compensation technology directly affect our visual experience. Therefore, the quality still depends on the ability of these factors to be integrated.
Appearance workmanship quality:
With the continuous improvement of people's living standards, a high-value TV that can enhance the decoration effect of the living room is indispensable. For the pendulum, the design is exquisite, the workmanship is excellent, all-metal, narrow frame, and ultrathin There is a lot of body. 
content:
In the increasingly serious appearance and hardware homogenization of TVs, the quality of mass content in smart TVs has increasingly become the focus of attention. After all, the most important thing to buy a smart TV is its massive amount of video content, and Reducing the waiting time for traditional TV commercials. If a smart TV does not have good and constantly updated online content, the smart TV loses its meaning. As a result, current smart TV manufacturers, which sell at the top, often make hundreds of millions of capital investments in their built-in video content in order to expect more consumer acceptance. Pendulum believes that the future of smart TV competition will gradually turn into competition for video content. Who owns more content copyright, and who owns the updated video content will be more abundant and will directly determine the fate of TV manufacturers. 
member price:
With the policy of SARFT exerting pressure, as a content-rich smart TV, the mode of vip member charging is indispensable. If you do not order membership fees, often a large amount of the latest content is not built to watch directly, of course, some friends think that you can solve the problem of fees by installing a third-party video software, please do not underestimate the SARFT's ability, with the right The smart TV industry’s normative management, placed Quan Fish believe that in the near future, all third-party video software will be subject to very strict genuine review management, look at the status of today’s all-aggregate VST app, it may be all The future of three-party video software. Therefore, in the future, you want to see rich, high-quality, high-quality video content. It is definitely necessary to order membership services.
At present, the prices of member services for all major smart TVs are not the same. Currently, the price of credit card members launched by Hisense is 490 yuan, the price of Xiaomi iqiyi members is 299 for one year, and 490 yuan for LeTV. The price of a micro-whale vip member for one year is 199. If the TV hardware is relatively homogenous, as consumers are certainly willing to choose smart TV products with more cost-effective content, they also hope to see more updated and richer video content with the least money. 
Ease of use:
Regarding the ease of use of smart TVs, first the system needs to be easy to use, the interface should be concise, the content should be easy to find, and it should be able to operate smoothly. Nowadays, many smart TVs are equipped with Bluetooth remote controllers, Bluetooth remote controllers and traditional infrared remote controllers. Compared with congenital advantages, not only the operation distance is farther, but also it can be operated without TV. It is much more convenient. Apart from the ease of use of the system and operation, few people actually consider the demand for smart TVs for low-bandwidth users, and Penduw is even more hopeful that high-definition online video can be played smoothly with lower bandwidth. When watching TV, no one wants to be stuck with it from time to time. This will also greatly discount our viewing experience. 
Sound quality:
Nowadays, the sound quality of TV is increasingly being noticed by smart TV manufacturers. In order to obtain better sound quality, smart TV manufacturers such as Xiaomi, Leshi, Hisense, and Storm have successively launched split TVs and are all on the TV host side. A number of speaker units have been designed, and it is also necessary to find the master tuning to bring about a better sound quality experience. After all, nowadays, it is more and more difficult to provide a better speaker unit for thinner and thinner TVs because of the limited volume of the sound cavity. 
The features of smart TVs are not only the gimmicks of their general publicity, but they have been found to have added features to the TV experience, such as voice operation functions and gesture operation functions, through simpler operations. The way to achieve the results we want most quickly is, after all, more convenient than holding the remote control to click on various letters, especially for elderly people who are not part of the Pinyin language. In addition, using the TV to find my remote control function, the mobile phone functions as a remote control when no remote control is available, the projection of a mobile tablet device, and the sharing of cloud pictures on a mobile TV can greatly increase the usage scene of the TV, and also allow We can feel the joy of technology. 
product price:
Finally, whether to buy or not to buy this issue, we still have to consider the price of smart TV. If a smart TV has all of the above qualities, it is still ridiculously high prices and it is still difficult for most consumers to accept it. , after all, everyone wants to buy a smart TV with high performance-to-price ratio, but if the price of this smart TV is almost the same as the price of traditional TV, then this smart TV value is not worth buying, posing the fish is believed in the user. The heart already has its own answer.
In the first quarter of this year, micro-whales released low-key new smart TVs - the Micro Whale W50J TV. The code-named Assassins, each release of the Micro-Whale TV, once lowered the TV prices of the entire industry again and again, and this time the launch of micro-whales W50J TV can be considered a value for money smart TV? 
The Micro Whale W50J TV uses a 50-inch RGB true 4K VA panel with a resolution of 3840x2160, a wide viewing angle of 178°, and a dynamic contrast ratio of 10,000:1 or higher. It features Ultra-Clear Motion motion image compensation technology for video playback. More fluid, another 64-bit quad-core processor supports H.265 10bit hard decoding, the mainstream video format is fully supported, and only 10M broadband can be viewed online 4k content; in appearance, the micro whale W50J TV uses a full metal Ultra-thin design, although the thinnest point is only 9.1mm, but the addition of 7000 aluminum alloy frame makes the TV body more sturdy; content content Tencent video, Mango TV, VICE and other high-quality content resources, and relying on Chinese cultural content creation platform , Brings a very rich and high-quality video content experience, and 199 yuan member price in the entire TV vip member ranks are considered the cheapest; in terms of sound quality, micro whale W50J TV built- Hi-Fi class speakers, with double-sided balanced bass Enhances and patents the treble spread of the Treasure Bowl and matches Dolby Sound technology, bringing a warm, sunny listening experience like noon; Surface, not only comes with Bluetooth voice remote control, mobile phone also supports projection and flat-panel remote control. Such outstanding performance of the Micro Whale W50J TV, which is priced at 3,398, excluding membership fee of 199 years, equivalent to the price of 50-inch 4k all-metal ultra-thin high-definition TV is only 3199, to know 50-inch non-intelligent 4k TV The price is above this price, and the actual price/performance ratio is not necessary. 
Millet music or micro whale? Smart TV how to choose, take a look and know
With more and more Internet companies joining the television industry, more and more smart TVs have entered our field of vision. At the same time, the prices of these smart TVs have again and again lowered the bottom line of the entire industry so that they can The prices of many smart TVs have been found to be lower than the prices of traditional TVs. In addition to the natural advantages of smart TVs in terms of content and functionality, smart TVs have increasingly become the first choice for consumers to purchase. Smart TV, how to buy a good and beautiful smart TV? This has become a topic that we need to discuss. Today we will come to subjectively talk about personal requirements for a smart TV. Special feature: