I remember that my first dog went out with me in the morning when I was in primary school, and never came back. Maybe I met a bad person, or there was an accident, That dog has been with me for five or six years since my childhood, so that now he still thinks of him from time to time. If today's protagonist "Xiaoxuan mini pet loss prevention device" had existed at that time, it would not have many regrets now. Too much talk is all tears. Now let's move on to today's topic -- Xiaoxuan mini anti loss device evaluation.

Next is unpacking.

It is still simply packaged in cardboard. I like it very much. It is neither wasteful nor simple. It seems that the first time I saw a mobile phone was a meter away. The difference is that Lei Feng used to try out plum blossom stickers instead of trying out machines. It seems that he has split up. Then go to the larger picture.

This is the back. It introduces the specifications and parameters of the next product. The QR code downloads the APP. Pay special attention to the SN number below. This is equivalent to the ID card of the device. It cannot be lost, or the device cannot be connected. Of course, the manual and the device itself have this number. Next, continue unpacking.

This is the cover for each device. Don't misunderstand it. It is for the convenience of connecting with the pet's neck ring. The material used is very good. Don't worry about the strength or anything. It won't hurt the baby. The color seems to be randomly distributed.

The compact package of the body of the mini has been shown to everyone. It is slightly larger than the one dollar coin, and it is very refined. The surface sanding treatment feels very high-end. There is also a round switch below and a multi-function indicator light. Press and hold for one second to turn on the phone, and then press and hold for five seconds to turn off the phone. The low battery red alarm gives a sense of technology and feels good. The upper part is an iron protective shell. I don't think it can be used in general. Iron can easily damage the shell of the anti drop device, so it is better to use a rubber shell. Well, don't talk much nonsense, and then look at the picture.

SIM card slot, very depressed. Now there are small cards, medium cards and large cards in the SIM card. I can't tell them apart. I happen to have two Unicom cards, both of which are small cards. I went to the Internet to buy a SIM card cover wordlessly. Here I want to complain again. The peddler who killed my father asked me for a set of SIM card covers for 15 dollars. In the past, I had a set of 80 cents in a certain treasure. Sometimes I could also mail it when I was engaged in activities. That's a long way off, It mainly tells you that the SIM card is a medium card, which is often called a micro sim card. Nowadays, mobile phones are generally nano sim cards. The small round hole in the card slot is used for resetting, not for exporting the sim card. I thought it was used for exporting the sim card, and then it was found that it was used for resetting the device.

The above figure shows the SN number on the fuselage. Do not spray if you are not professional.

The upper part is the charging port. The magnet adsorption type is similar to the Apple Mac book, which is an innovation. However, the drawback is that the card slot is not in place during the adsorption, which is easy to contact poorly. There are two other contacts under the connector rubber pad, which should be used for debugging code.

I was going to dismantle it for evaluation, but the 2G signal of Unicom near my place is too poor, so the anti loss device is not very useful. Another reason is that the anti loss device has no screw design outside, it is an internal buckle, which may need destructive disassembly, so it was not disassembled temporarily when the test was not very good. But I guess that this kind of equipment is basically using the ARM Cortex-M0 core MCU, which can achieve the balance between power consumption and performance. There are also GSM and GPGS modules, WIFI modules, and GPGS modules for positioning. It is a good innovation to use wifi to locate areas. Once the wifi signal is lost, the pet is not at home, The official emphasis is that it can stand by for more than 7 days under moderate use, and the accuracy is within 5 meters. Let's talk about the specific parameters here. The operating temperature is - 30 ℃ to 45 ℃; The waterproof grade is IP65, which means that the dust is completely prevented from entering, and the low-pressure water jet at any angle has no effect; Specific size: 40 * 28 * 15.9 unit mm. As a pet anti loss device, it is more careful. Here is a family photo. There is nothing to say.

According to the explanation, there is still one clip that hasn't been photographed. It doesn't look like the original one. It seems to be provided later.

The following is APP. Every intelligent hardware must have an APP, otherwise it will appear very unintelligent. Ha ha, joking.

First, you need to register a number, and then add a device. You can scan the SN code, but the efficiency is not very high. You need to wait a while to see the location information when adding it, because you need to register the anti loss device to connect to the operator's 2G signal. Note that only 2G signals are supported, and then send the device information and location data to the manufacturer's remote server, Then we read the location information belonging to our little pet from the remote server through the mobile phone APP, which requires enough time. Now it is the 4G era. When you switch to 2G, you can feel the speed of the tortoise, especially Unicom. I won't complain about the Unicom signal here, 2G is slower than tortoise speed, so I'm not very satisfied with my use, so I advise you to use mobile traffic cards, or hope the manufacturer will support 4G signals in the later stage. By the way, the monthly traffic needs about 60 to 100 meters, not much, but this should be a conservative estimate, because it should be calculated according to the amount of exercise of your pet.

The above is about interaction, mainly the function of APP. I think it is OK. There is a circle of friends playing with dogs. By the way, when selecting pets, only the type of dog can be selected. This is my assessment. Finally, I would like to make a summary or some suggestions:

1. When the SIM card is changed into a nano sim card, it is not only small in package, which can save space, but also can be seamlessly connected with mainstream mobile phones.

2. Signal problem. Although the Unicom signal is not very good, I feel that the data stream sending location information should be tolerable.

3. The APP does a good job and has rich functions. I hope to connect to WeChat, because I don't normally open the APP in the background every day.

4. A version of the APP has been updated in the past few days. I feel that the team is very diligent. After all, the interaction with people is mainly in the APP.
   

5. On the whole, the products are done with great care and are worthy of recognition. I hope they can be improved later and more humanistic.

   Thank you.