1、 Write at the beginning

Mobile phone case is a very common product in our daily life. The basic function of mobile phone case is to protect the phone from knocking, falling and abrasion. The styles of the mobile phone case are more diverse, which makes people fussy, but there is no breakthrough in the function. Today, the author led us to know a multi-functional protective case called "Demon Lover", which is known as a black technology. It is not only a protective case, but also brings more convenience to iPhone 7 and Plus users, making your iPhone 7 taller.

2、 Simple unpacking

There are four types of CoCase multi-function protective cases The colors are matte black, navy blue, coral green and wine red. The following are the four color pictures and live pictures given on the official website of Demon Lover. It can be seen that they are basically the same as the frosted black one obtained by the author.

This time, the author tried the black mobile phone protective case to match The iPhone 7 Plus is matte black. Let's open the box briefly. The white paper package, with the product name Smart Protective Case for iPhone7 Plus on the front, shows the product name and the applicable mobile phone model. The protective case is fixed in the paper box with sponge around to avoid abrasion caused by collision. A manual is attached, which is simple and compact, and contains many words and detailed explanations, which solves the problems that most users may have.

The description of the product color has a sticker on the side saying "frosted black", which can easily be ignored if you don't pay attention to it. In general, the protective shell has a simple appearance, which is convenient for transportation, and also ensures the safety during transportation and avoids the wear of the protective shell.

3、 Detailed display and function description of protective shell

The main keys of the multi-functional phone case are concentrated on the upper part of the back, which mainly includes three keys, one indicator light, and the 3.5mm headphone interface that is not available on the iPhone 7 and iPhone 7 Plus phones. The protective shell is very light and thin as a whole, not as heavy as it seems. The front is frosted black shown by the shell, and the back feels very smooth and textured, but the two sides are slightly rough and not polished carefully enough. In addition, it is easy to leave fingerprints on the outside of the protective shell, which needs to be improved.

The inside of the protective shell is covered with a layer of flannelette. The flannelette is pasted tightly and sewn meticulously. When you move your fingers up and down, you can feel the protruding fluff, which effectively protects the wear caused by the friction between the phone and the protective case.

Next, let's protect the main buttons and functions of the shell. There is a very inconspicuous pinhole indicator light on the top, mainly in blue, green and red, and there are cross occurrences. Here, users are reminded that when connecting to Bluetooth, they should press and hold the power on button for about 5 seconds when they are turned off. The indicator light will flash in blue and green, and others can be operated according to the instructions. What is particularly commendable is that there is a voice prompt when starting up, and there is also a corresponding button sound prompt when the volume increases or decreases, which can effectively prompt what we are operating.

The top side of the protective case is the charging interface of the protective case, which means that the charging interface of the Apple phone saves the trouble of buying another data cable. The 3.5mm headphone interface protrudes beside it, which definitely solves the problem of most iPhone 7 users and saves a lot of trouble. The Demon Lover multi-function protective case is in hand, and the 3.5mm headphone interface is not a worry.

4、 Experience

The CoCase multi-function protective case feels good when installed on the iPhone 7 Plus phone. The protective case fits the phone very well, so you don't have to worry about the phone slipping; In addition, the key positions of the phone case are very good, which will not affect the use of the keys, and also effectively protect the rear camera; However, the protruding 3.5mm headphone jack is slightly protruding, which affects the overall aesthetics.

When charging, the indicator light is always blue; Green when fully charged; Red indicates low battery. In general, the color description is easy to identify, but the indicator light is slightly small. It is not easy to identify the blue and green colors. Especially when Bluetooth is connected, the indicator light will cross flash. The first time I used it, it took about one hour to charge, and the green light was displayed. The overall speed was very fast. And the official said that it takes 5 minutes to charge and 2 hours to use; 10 minutes, which can take 3-4 hours. It takes about 70 minutes to charge and 30 hours to listen to music/talk. The actual use experience also proves that the official standby time can be basically achieved.

In terms of operation, whether it is right hand or left hand operation, the position of the power on key and the volume adjustment key is just in the position of the index finger and middle finger. It can also be easily operated when a single handset is used. With the voice prompt of "power on, power off, connected, disconnected", and the increase or decrease of the volume, it is more convenient for iPhone users to listen to music and talk.

5、 Summary

The CoCase multi-function case is a multi-functional phone case with high cost performance. It not only helps many users solve the problem of 3.5mm headphone interface, saves the trouble of iPhone 7 adapter, and adds a layer of protection network to the phone, but also provides users with more convenient operation when listening to music calls. The advantage of the Demon Lover lies not only in its cost performance, but also in its appearance. In terms of operation, the user application experience is fully considered, which is easy to operate and has a prompt tone. However, there are still some areas that need to be improved. For example, the work on both sides of the shell can be slightly more detailed, the design of the indicator light is clearer, and the color selection of the protective shell is more diversified.

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