Cool music as Q7 how good? Cool music as Q7 advantages and disadvantages assessment

With the rapid development of the smart projection industry in recent years, great breakthroughs have been achieved both in technology and in the market. As an emerging display device, smart projection is deeply rooted in the characteristics of its large-screen portable. Can be found in the models we reviewed, although some smart projection in the volume than the traditional home projection and TV is much smaller, but in terms of portability is not very easy to carry. For this reason, the more compact hand-held projection became the first choice for many people to move the big screen. 1. The brightness of hand-held projector king The realization of the handheld projector market, style, brand, which also led to the current hand-held projection market is mixed, poor quality products are everywhere, the market is also in urgent need of a product as a benchmark. However, due to the limitations of compact size, brightness performance is often not good, basically only a few dozen lumens, resulting in the actual effect of such products is not ideal. Recently, Cool LeTV has just released a new hand-held projector - Q7 or will become a clear flow of this market, this handheld projection and other products What is the difference? In the next evaluation process, the editors will reveal to you one by one.

Cool music as Q7 equipped with a 0.3 DMDRGB-LED display technology, the standard resolution of 854480, supports 1080p video decoding playback, bringing more detailed projection effect. The Cool Music Q7 has a short throw ratio of 0.9. It only takes 1.9 meters to project 100 inches. At the same time, Cool Music considers the Q7's "inside" to be equipped with a 5000mAh battery.

2. Small and compact to carry without impetuous. Cool LeQi Q7's shell is made of high-strength material polycarbonate, polished through the process, making the appearance look like a crystal-like effect. Unlike Cool Qon Q series products, Cool LeQ Q7 looks more simple and stylish atmosphere. It is worth mentioning that its compact size, only a 270cc/280g fuselage can easily hold a palm, put it in the pocket is not significantly bulky.
Next to tell you that the difference between the cool music Q7 is that it is not equipped with a remote control. Yes, you did not misunderstand, Cool Music Q7 does not have a remote control, all operations must be done on the top touch-control panel. Something doesn't apply when you just touch it, but it's more convenient to use it in your hands.
Cool music as the Q7's right side of the fuselage to set 3 physical buttons, respectively, is the key to open, focusing F + key, focus F-key, the fuselage has a cooling hole on the front and bottom design, the entire cooling system will automatically according to the internal temperature of the machine Adjust the wind speed. In the actual test process, cool music as the Q7's cooling effect is still good, but also in the processing of noise has also worked hard, noise is much lower than similar products.
Cool music as the back of the Q7 set up 4 interfaces, including DC power interface, a USB2.0 interface, a high-definition HDMI interface and a 3.5mm headphone jack, although the interface is not as complete as the traditional projector, but the current projector In terms of use, Cool Music regards Q7 as having all the functions of the interface, and there is no problem in daily use.

3. Functional System External Expansion Performance The Cool Lexus Q7 has also undergone major surgery on the system, giving up the Android Android smart system, which also means that all Q7 resources and content can only come from external devices (HDMI, USB, wireless / Wired with screen). This approach has both advantages and disadvantages. The advantage is that the system itself is more concise and stable; of course, the disadvantage is that users who are used to Android will not adapt.
Although not equipped with an intelligent system, but the cool music as Q7's same screen function is quite good. In addition to being equipped with a common PC on the projector and miracast/Airplay/EZCAST wireless screen, it is also possible to connect a mobile phone to a screen via USB. This function still gives people a feeling of light up, and no matter what the way the screen is, the whole operation is relatively simple and easy to use.

4. Limit testing True gold is not afraid of fire. People usually think that projectors can only be used in darkrooms to get the desired effect. Whether or not the projector can be used in the daytime or in the lighting environment has become a focus for consumers. Although the brightness of hand-held projectors is much lower than the brightness of traditional projectors, this limit test of different sizes in different environments must be treated equally. After all, real gold is not afraid of fire, so that it can give consumers a projection. Machine real performance.
We first selected a conference room around 2 pm as a test environment. From the figure we can see that in the daytime environment, cool music Q7 in the projection of 80-inch screen is fairly clear, but after zooming to about 100 inches, the screen is basically difficult to see. In the same environment, we found that the best size of Q7 in the daytime environment is between 30 inches and 40 inches.
Next we turn on all the lighting in the conference room and see how the Q7 will perform under the lights. After turning on the lights, we discovered that the picture was blurred. At this time, we invited our colleagues to hold the Q7 with cool music to gradually reduce the size, and found that when the size is reduced to about 20 inches, the screen effect is the best.
Finally, we returned to the darkroom of the evaluation to see how Cool Music looks under the Q7 all-black environment. Through real shots, we can easily find that the effect is still the best in the all black environment. Both the brightness of the screen and the performance of the color are much better than those of the previous two environments. Of course, Cool Music regards the Q7 as a handy projector with a very small size. It can have such a picture performance in the daytime environment and the lighting environment. It can be seen that the performance of this projector is still good.

5. Screen real shot clear detail handling For an entertainment hand-held projector, viewing quality is a problem that users are most concerned about during the purchase process. Cool music as the Q7 is not equipped with a smart system, we connect through an external device to test the cool music as the Q7 on the performance of different styles of movie screen performance? Let's take a look at some of the following movie shots.
Through the above a few real shot map we can find, cool music as the Q7 as a hand-held projection, such a projection effect is quite satisfactory. Many details in the picture have been well preserved, the picture is clear, and the overall degree of reduction is high. Although there is still a certain gap between the details and colors compared to the conventional home projectors, in the field of handheld projectors, such picture effects are still worthy of recognition.

6. Good performance in color test reduction and sharpness Color testing is a routine test item for us to evaluate the projector. The main purpose is to examine the color reproduction capability of the projector through the comparison between the color test proof and the real shot diagram. That is, the projector can accurately restore the true colors, there is no color cast, color brightness, saturation, warm and cold tone and so on. (Because of the equipment, there is a certain error in the real shot chart)
We can see through the above a few color contrast charts, cool music as Q7's color reproduction capability is still possible. The images presented are cool colors, and the color saturation is not as high as the original image. From the figure close-up comparison chart, we can see that many details in the picture are still well preserved, and the picture sharpness is excellent.
In the comparison of the four-color maps, it can be seen that the reduction of the yellow and green colors can be achieved without significant differences, but due to the problem of insufficient brightness, the red block is significantly darker than the original image. The blue block appeared purple, which is also a common problem of micro projectors. Overall, Cool Music regards the Q7 as relatively close to the original in color rendering.

7.Focus test has a few defocus phenomenon. Focus test focuses on the focus of the projector. We check the focus effect of the projector through a fixed PPT test file. For the mini projector, due to its small size, it is prone to poor heat dissipation. The problem, which led to the phenomenon of thermal defocus. So how does QC's focusing effect look? Here we look at the test shots actually taken.
Judging from the actual PPT files we have taken, Cool Q7 can still focus on Q7. Most of the text, English, and numbers on the screen can be clearly projected. However, some parts of the picture may not be visible. Cool music as Q7 focus is still some problems, need to improve later.



Finally conclude that two sentences:
Advantage:
1, small form factor, carry it is not burdened 2, measured brightness is good, high brightness in handheld projection 3, equipped with 5000mAh battery, good battery life 4, with the screen interactive powerful, strong expansion weaknesses:
1, not equipped with intelligent systems, their own resources are not enough 2, do not carry the remote control, control operations need to adapt to cool music as the Q7 in brightness compared to other similar products made a great improvement, the measured brightness is also a good performance in handheld projection A model. At the same time, Cool Music regards the Q7 with a projection ratio of 0.9, and the larger screen requires only a smaller distance, and the same can be seen in a small space. In the presentation of the screen also reflects a very high degree of reduction.

Cool music as Q7
In general, Cool Music regards the Q7 as a well-performing micro projector that is carried around. Whether it is appearance or performance is a good choice. Although it does not have an intelligent system, it is not competitive in its own resources. But good external expansion has made it regain one resource in terms of resources. And the price of 1,699 yuan will not make consumers have too much burden. In summary, the Cool Music Q7 is a good handheld micro projector.

Brake Pressure Sensor

Brake Pressure Sensor,Pressure Detector Brake,Hydraulic Pressure Sensor,Analog Pressure Sensor

Shenzhen Ever-smart Sensor Technology Co., LTD , https://www.fluhandy.com