Write in front

Seeing the crowd ebb and flow and the sun rise and fall, our pace keeps moving forward in the era of rapid development. It is estimated that there are few opportunities to watch TV due to the busy life every day. But if you look at the 55 inch color TV set in your home, you may occasionally have to stick ash as a decoration. Over the past two years, intelligent hardware manufacturers and varieties have become increasingly complete, and home projection has become a hot topic. Jimi Technology is also one of the companies with vitality and striving for youth. The latest crowdfunding product, Jimi Z4 Jueshe, is also the focus of everyone's attention. This time of screen free TV tour is about to start.

Projection is extremely popular, and the development of Jimi projection in China is also rapid. In the past two years, excellent products and reputation are good. After the Z4 Aurora and H1 in the latest family screenless cinema, the new product of this crowdfunding, the Z4 Jazz, also has its own goals and positioning. Jimi Z4 Jazz mainly focuses on the young market. The thin, compact and portable projection makes more people immersed in the world without screen. Whether you enjoy it at home, work at work, or relax outdoors, you can play it anywhere you want. This is the convenience of Z4 Jazz, which makes video playing more free and convenient. Now if crowdfunding is successfully completed, we believe that the official website will be available in the near future. We look forward to its metal body, golden color appearance and comfortable frosted feel design. We can consider preparing a daily use for our family.

Appearance display

Nowadays, most electronic products like to be packed in paper boxes. The fashionable, elegant and business atmosphere is naturally revealed, and the black packaging of Z4 is more elegant. The outer packaging is very unique. Instead of drawer type or flip adsorption type, it adopts the left, middle and right extraction type, which is very attractive to modularize the product.

The outer packaging is extracted from the left, middle and right respectively, and the inner packaging is also packed in two boxes. Separate the host and accessories so that you can better carry out daily distribution and use. The all gold inner packing box is still very fashionable.

Jimi Z4 Jazz keeps the same design as Z4 Air. It is mainly portable and can be used for projection playing when you go out. The 0.65kg weight is not heavy, but it has weight. The golden appearance is very cool. The three circumference is 113.5 × 214 × 23.9mm, which is easy to carry when you go out and move freely when you put it in your backpack or hold it in your hand.

Nowadays, whether it is mobile phones or other electronic products, the texture of metal is always the user's pursuit of experience. The metal material of Z4 Jazz is very good, and the surface is sanded and finely polished to make the look and feel double enjoyment. Especially in the hot summer, the experience of metal feel is fully reflected.

Simplify the complexity. It is more convenient to open the slide switch to the world without evidence, and the lens is well hidden in it. The slide will give you a natural new world in an instant. The actual experience is great. The switch is smooth and smooth, and the lens inside is well protected.

The metal gear used by Jimi for side focus adjustment is very convenient for manual focus adjustment. This gear can be used to adjust the image clarity of the projector at different distances. It is also very convenient to adjust in actual use.

As an electronic product, heat dissipation must be considered. Z4 Juice uses front and side plastic materials as heat dissipation outlets, which is different from ordinary metal materials. The better heat dissipation material is graphene, which can ensure that the machine will not be unstable due to high temperature in daily use.

The interface on the back of the Z4 is also available to meet your daily needs. Including: power adapter interface, USB 2.0 interface, USB 3.0 interface HDMI、 Audio input hole, power button. Usually, all the interfaces you need can be used here. You can use an external USB flash disk or a mobile hard disk to make up for your own storage shortage, especially when you need to copy files for playback or transmit them outdoors.

A good projector needs a good sound box to cooperate with it. The Harman Carton sound box unit built into the projection is OK for ordinary life needs, but it is recommended to use other external speakers for more extreme pursuits.

Even if there is no network, as long as you connect the projector through the built-in HDMI cable, your computer and TV can realize the output of audio and video.

It was thought that the bottom of the Z4 Jazz color was also made of metal, but it was plastic, which was a little disappointing, but it also used golden yellow for polishing. The four corners of the bottom were protected by plastic gaskets, which can stabilize the machine well and prevent the bottom from wearing.

On the whole, the lightweight design of the Z4 Jazz portable is very good. The integrated design of the whole body is very refined. The golden yellow shape and design are more young and fashionable. It is beautiful and easy to use. The daily use and viewing are both enjoyable.

After several iterations of upgrading, even the remote control of Jimi adopts metal materials. The overall appearance is fashionable and attractive, the actual feel is smooth, and the operation is convenient and sensitive. The 12 key integrated design, each key has its own mission, the metal material is polished and then anodized, making the overall feel comfortable. The wireless remote control is carried out when the Bluetooth is connected to the projector. In addition to the normal keys, the daily use can also carry out laser pen, flying mouse and other operations, making the entire use more diversified.

The built-in lithium battery is used instead of the button battery, which is more environmentally friendly and convenient. It can be used for several months at a time. Friendly reminder: When you first get the remote control, the official advice is to charge the remote control for at least half an hour before using it.

For daily indoor use, it can be matched with its own power adapter. The adapter is a little big, but the projector does not support the mainstream USB socket charging.

Portable is cool. The built-in 13600mAh large capacity battery makes mobile free use convenient. It is especially convenient to play videos outdoors and in office. The official data is that videos can be played continuously for 3 hours (4 hours in energy-saving mode). As a matter of fact, I am playing about three and a half episodes of the TV drama The Classic of Mountains and Seas, with an average duration of about 45 minutes. In addition to some music and other operations, the overall endurance is satisfactory. At least there is enough time to watch a movie every day.

The powerful built-in battery can be used as a dual-use power supply. Long press the mobile power supply to be quiet, and you can charge your other electronic products (mobile phones, tablets, smart watches, etc.). Going out to watch the temporary charging is indeed a necessary artifact.

| System experience

In fact, all exterior design will bring good feelings and bonus points to the product. But as an electronic product, especially a projector, which is not popular in the family, we care more about the daily system experience effect. Z4 Jueser's system is based on GMUI, a customized and optimized system developed by Jimi Home based on Android 4.4.2. It is similar to the current system used by most Android phones, but Android has developed rapidly, and 5.0 and 6.0 systems have also appeared in the market. I wonder when the projector of Jimi will be updated and upgraded? 1G memory and 16G storage meet daily needs.

For the experience of Android system, we basically have our own in-depth experience. In fact, we are quite satisfied with the use of Z4 Jazz. After using it for more than a week, there is no serious jam and crash on the whole. It seems that the system optimization is relatively stable. The overall system UI is simple and easy to use. It is similar to the operation of an ordinary set-top box. You can use it together with your own remote control to better operate it.

The biggest demand for daily use of projectors is audio and video. We have in-depth cooperation with Baidu Music and Mango TV, and we also give free Mango TV VIP membership cards for one year during delivery. Daily ears and eyes can enjoy the double screen less wonderful.

Baidu Music can ensure the high definition sound quality and avoid copyright issues. The cooperation between Jimi and its partners has indeed expanded its own audio library. It uses the Z4 Jazz's own speakers to play everyday, meeting the daily hearing needs. Baidu Music classifies the tracks in detail. The overall resources are numerous and clearly divided, which meets the needs of different people with different styles of music. However, when searching for songs everyday, I found that some pieces of music were still missing. It is suggested to expand the music library.

Mango TV, a popular video resource nowadays, is indeed one. In addition to popular variety shows, it also includes many first-hand and latest film and television resources. Mango TV is very influential in this regard, and most of them can rely on video. It includes a variety of live shows, movies, TV, and more choices. With the powerful resource advantages of membership cards, you can enjoy more visual fun.

It's not uncommon to play games on mobile flat screen TVs. In addition to several commonly used classic games recommended by the system, Z4 Juesee has many favorite classics, such as Metal Warhead, Thunderbolt, Thunder Racing, Kung Fu 97, and Dinosaur Quick Play. Of course, there are more games with a full range of categories. You can start to enjoy the wonderful game without screen when you download and install them daily. Personally, I suggest that if necessary, you can connect the cable or Bluetooth handle online, so that you can enjoy playing games.

Of course, the Android system needs applications for auxiliary use. Common recommended applications have been pre installed for you, and can be opened and used normally if necessary. Of course, there are all kinds of classified applications, including all kinds of applications needed in daily life, which are searched by classification and search. It is necessary to manage daily applications. Downloading, updating, and application management can be simply operated through the remote control. More applications can also be downloaded from the "Screenless Assistant" APP or copied and installed from a mobile hard disk/USB flash drive.

The projector has its own system, so it has its own setting options. The daily system settings include: network settings, Bluetooth&peripherals, projection settings, general, user and about. The overall use of rectangular large modules to distinguish, can be seen at a glance and the function is relatively clear.

Network settings: It seems crazy that there is no network nowadays. Z4 Jazz uses wireless WiFi connection, and you can enjoy the network when you connect with wireless signals. Just like the daily steps of connecting mobile phones and tablets, you can find the corresponding network and enter the correct password to connect.

Z4 Jazz also supports Miracast, AirPlay and DLNA wireless technologies. As long as your devices and applications support these three technologies, you can enjoy multi screen interaction. Android/iOS devices can easily cast screens.

Bluetooth&peripherals: Z4 Jazz, which supports Bluetooth 4.0 protocol, supports most of the Bluetooth devices on the market. Of course, you can connect your own remote control for more operations at the beginning. If you want to play games, you can connect the Bluetooth handle; For daily office applications, it is really troublesome to use the remote control. You can connect the Bluetooth keyboard and mouse, which saves time with half the effort; For the Hi Song people, if there is a microphone connection, they can be Macba anytime and anywhere.

Projection settings: people have high requirements on the playback of projection in daily life. The system settings can operate the projector according to the daily usage habits. According to the light and other environmental conditions, you can set more different scene modes: viewing mode, power saving mode, energy-saving mode, highlighting mode and custom mode. It can be adjusted freely according to the electricity quantity and the environment, and it can also better protect your eyesight. Ambient light sensing can also adjust the switch. On the premise of ensuring the horizontal placement of the machine, Z4 Juice supports the horizontal correction of the gyroscope.

The projection mode can also be set freely. The Z4 Jazz color includes four types: formal front projection, hoisting front projection, formal rear projection and hoisting rear projection, which can be manually selected according to your location and different viewing needs.

Z4 Juice only supports vertical trapezoid correction of ± 40 ° and the functions used by mainstream projectors. After all, the price of the product is here, so it does not support horizontal trapezoid correction temporarily. In this way, you can safely move and place your projector.

Stepless zoom: supports 0-100 stepless zoom, vertical zoom and horizontal zoom. Stepless zoom can ensure that the corresponding pictures of different pictures with different contrasts are played and maintained.

For long-term use, the problem of heat dissipation must be well handled. Custom can also be automatically discharged by Z4 Jazer, or manually discharged by 1-10 levels to ensure daily machine heat dissipation and system stability.

General settings: daily habits and preferences settings, including manual or online settings of time, daily screen saver time and picture settings, whether to turn on the power source, and related settings of input method and theme.

There are two types of desktop version system atmosphere: standard version and business version. The standard version is the default version of the system that you see in daily life. As the business version, it is mainly used for daily office needs. After you open it, the desktop will be displayed as a daily office application. In addition to switching between two versions in the settings, you can also click to switch in the status bar.

User: It is necessary to have an account for daily use, which can be used for daily settings and feedback from the Jimi community, including cloud backup settings.

About: A brief description of the Jemime Z4, including daily system information, upgrade status, factory restoration and other information.

Resource manager: For a general steward, you can view all relevant information here. The Z4 Juice fuselage stores 16GB, of which the built-in storage is 8GB, and the other half of the hidden 8GB storage is occupied by the system. You can add equipment freely through the rear interface. Here you can see all the files in the projector, which are classified into All, Video, Music, Pictures and Documents, and arranged orderly.

The common application systems on the right are automatically installed for you, including Lebo projection WPS Office、 The daily operation of Mango Internet TV and JD WeChat is very simple. Lebo screen casting operation is more complex, and iOS/Android has different applications.

Jimi PC on-screen assistant: It supports the installation of corresponding applications on computers and laptops. After connecting Z4 Jazz, you can project the screen on the computer to the projector. The 100 inch screen magnifies your vision. Whether it is for office work, broadcast, speech, and demonstration, it will become a particularly eye-catching and comfortable broadcast.

In addition to its own card style graphic instructions, the system is also considerate to prepare electronic instructions for you, and the corresponding functions can be set according to the instructions to get the operation you need. Daily teaching is very simple. Even if there are parents or children at home, you can learn and use it easily.

Small polar meter, big test field. Small mobile phone and big play enable your mobile tablet to enjoy free screen projection, which is a pleasure of more than 100 times magnification. The system's own "Lebo projection screen" supports Android/iOS system, allowing your mobile phone and tablet to play anytime and anywhere. The visual effect of large screen operation is really different.

Mobile phones download the corresponding "Lebo Projection" APP, and the interface functions are very simple. In the future, more cooperation and play methods should be developed. Photos, videos, and music in mobile phones are supported for screen projection. More application games can only be played with the corresponding permissions. In the settings, you can customize the bitstream and resolution. The actual screen projection effect is very good, and it is more practical for teaching sharing such as daily speeches and demonstrations.

The built-in remote control has only 12 keys, which may be a bit cumbersome for daily operations, such as entering account numbers, searching and querying. It is troublesome to click back and forth. In addition to solving the shortcomings of the physical remote control, the "Jimi Assistant" can also bring more convenient and quick operations, including the touchpad that can accurately find the place you need, volume adjustment, home page, return, mute, power off, etc. The projector screen can also be on the same screen with the phone. Some applications need to be on the same screen according to the authorization of the phone's operating system. The R9 on the hand is Android 5.1, while the Gemi Z4 Jazz is based on Android 4.4.2, so the firmware does not support it for the time being. I hope Z4 Jazz will have a great upgrade in the future. You can also use other local resources of the mobile phone to project the screen.

The author first used the "Kimi Assistant" APP, and later found and used the latest "no screen assistant" in the Kimi community. This customized Kimi mobile projection combined APP is more convenient. After connecting the Kimi projector, you can watch on your mobile phone and freely operate back and forth to play the projector. Daily movies, music, and applications are more convenient than using a remote control, We have all experienced the convenience of directly clicking on the touch screen mobile phone.

And the mobile phone remote control is more convenient for everyone. In addition to the direction key of the remote control, the mobile phone can also use the touch pad for more accurate positioning. There are more fun and useful settings in treasure chest to let you enjoy more when watching the projection. The function of "voice" is in cooperation with iFLYTEK TV language point. It is operated by voice recognition and opening search corresponding application.

Although the system GMUI is simple, it is easy to use. It also adds a quick adjustment function for daily projection. Long press the menu key of the remote control (or select on the assistant app) to quickly set the video: video setting, LED mode, 3D playback effect, projection setting, and sound effect selection.

| Projection effect

As a household projector, the Z4 Juice uses a high-definition coated lens, a 0.3 inch DMD RGB LED display chip, and a brightness of 1000 lumens. Although everyone is pursuing high resolution, this time it is still the standard resolution of 1280X720, but it can also accommodate 1080P and 2K, 5000:1 contrast. The projection ratio is 1.07:1, and the projector is actually placed in a horizontal position. Daily projection can be quickly and accurately performed through manual button focusing.

The super 4 meter wide screen allows you to enjoy different visual effects. 16 image quality enhancement technologies and 11 color enhancement technologies ensure that the daily ultra meter Z4 color can be projected on the 100 inch giant screen while still being clear and sharp. The daily viewing experience still shocks you.

Although the lumen is not enough, the basic brightness and picture definition of a family projector can be satisfied. Occasionally, the display effect of office use or outdoor leisure is poor, and the picture is not bright enough.

Projection video playback supports 3D. There are some 3D movie resources in the video, and the actual effect can be used with the 3D eyes of Jimijia, which will achieve better playback effect.

Because the author does not have a powerful screen for demonstration, he can only use ordinary white walls for projection demonstration. The effect of daily use in the daytime is found to be slightly unclear due to low lumens, but the overall effect and satisfaction are still reasonable.

The effect of using at night is better when the light is turned off and the screen is dark, so that you can immerse yourself in the world without screen.

More video screenshots are shared. The actual playback effect and picture quality are very good.

| Experience and comprehend

In fact, it is the first time for the author to try to write a projector in depth. I hope you can give me some guidance on the shortcomings. It mainly focuses on household portable projectors. For today's micro investment market, its products have a certain reputation and a good market, which stems from its pursuit of product excellence. Jimi Z4 color has basically overturned my view of traditional screen TV, because it is convenient and free, and free projection can enjoy the immersive effect brought by the large screen, the shape of the metal all-in-one machine, the golden yellow matte and delicate polishing, the large battery capacity can support ultra long playback, and enjoy the picture quality experience of the 100 inch giant screen, the simple GMUI operating system, and the multi-functional all metal remote control, These are all extraordinary non-traditional experiences brought by Z4 Jazz, allowing you to play without screen at any time and anywhere. For people with fast-paced life, free play is another way to enjoy leisure in your spare time. Although the actual use effect is not high in lumen, the price gear is also a good choice today, and it meets the demand for outdoor use when going out to work in the daytime and at night. The use process has also seen the occurrence of "stuck" phenomenon. After all, the Android system still needs to be improved. But generally, I am surprised and surprised to be a newcomer to the projector. I look forward to seeing more immersive beauty in the next corner!

Personal suggestions

1. It would be better to keep the whole metal consistent, and the base should also be replaced with metal material.

2. It is better to wear a portable storage bag/bag, and a cleaning blower is required for lens cleaning.

3. It would be better if GMUI system could customize the order of common module boards.

4. GMUI hopes to update the underlying driver as soon as possible and use Android 5.0 and 6.0 as soon as possible; Firmware upgrade includes the same screen operation of the corresponding mobile phone.

5. I hope there are more different modes, including the elderly/children mode, so that everyone can enjoy different fun without screen.