Preface:
It has been a long time to follow the trial activities of Lei Feng. com, and almost all of them applied for each trial, but they failed each time! There will always be a little disappointment and loss in my heart, but I still firmly believe that there will always be opportunities. Therefore, even if I failed to pass the previous serious application, I still keep my passion and enthusiasm. Because of my love for digital electronic products, I am tireless, so I am always happy!  
This is my first time to win the lottery. I am still very excited. I know that my persistence and perseverance will not pay off! Here, first of all, I would like to thank Lei Feng.com for giving me this trial opportunity and for the trust they have placed in me. Although I am a non professional amateur reviewer, I don't usually write experience reports. If there is anything wrong, please spray it gently! But I will try my best to write a good report, and I hope it can help to improve the relevant products of Lei Feng. com!  
Every time we see a new product, we will not hesitate to participate in it. Finally, we applied for the trial successfully, and our efforts were in vain. Thank you for the support of fellow villagers and Lei Feng.com. Now, we will not talk nonsense! The following is the product evaluation:

The express used by the product is China Express, which covers a wide range of areas. Personally, I feel it is good, the package is tight, and the speed is also good! Basically, it can be received in about three days. The packaging is very solid in paper boxes, which makes people feel very safe.

Unpacking, we have today's pig feet: UVA+B SunFriend UV detection bracelet. Of course, this time is no exception. Let's start with packaging! UVA+B SunFriend UV detection bracelet The packaging of is very common without obvious characteristics. With simple text printing, the overall packaging is quite environmentally friendly, clear, fashionable and simple, not pompous at all!

UVA+B SunFriend UV detection bracelet The back of the box is also simple!

It must be to write product specifications, introductions, precautions, production information, etc., so that the partners can understand this unique UVA+B SunFriend UV detection bracelet However, we can't understand what is written? First use UVA+B SunFriend UV detection bracelet Don't forget to Baidu yourself!

The whole controllable buttons of the product are four and eleven indicator lights representing eleven levels

okay Take a look at the watchband again! This watch strap looks drunk too. The material is not ordinary, but very ordinary. It has a little thread. Our belt with a few yuan is better than this watch strap!

The four buttons are: Switch, set sensor, check button (what are the two values explained above?), UV index. However, we still can't understand what this means?

Switch: when SUNFRIEND is off, press the ON key to scan all indicator lights from 1-11 immediately

When SUNFRIEND is on, if it needs to be turned off, it is only allowed to press the ON key for a long time for one second. Scanning the indicator light from 11-1 means that it is turned off

Setting button: this is to set the required degree of sunshine

Press and hold for 3s, and then jump backward from 1. You need to set where and where to loosen the setting button

"Do you know what kind of vitamin can be sufficient in the sun?" Yes, the answer is vitamin D! Sunshine itself is a good thing for both body and mind, which promotes the absorption of calcium. Joyful mood can enhance happiness. However, if you have sunburned, the skin burns and spots will not be mentioned, or even increase the risk of skin cancer. Speaking of which, do you dare to take the newborn babies out to bask in the sun? Don't think it's OK to wear sunscreen. At best, it can prevent sunburn, but it can't stop the most dangerous melanoma.

Sunscreen, sunscreen clothes, sunscreen umbrellas and the like only provide a simple and crude solution. Many times these sunscreen objects cannot bring us convenience at any time. For example, we don't know the current UV index. Maybe the sun protection index in the morning is different from the sun protection index at noon, or we want to get a healthy skin color, but we don't want to get sunburnt. We need a portable visible UV index Sunfriend bracelet.

　 advantage:

　　 1、 Can view the UVA and UVB index, good comments.

　　 2、 It is said that it can prevent 3m deep water and can be worn when swimming.

　　 3、 Simple operation and clear structure.

　　 4、 Multiple colors can be selected to meet the color needs of different people.

　 Disadvantages:

　　 1、 It can only detect ultraviolet rays, and its function is too simple.

　　 2、 It looks a little like a children's watch. It is not compulsory.

　 　3、 Battery cannot be replaced, poor rating.

　　 4、 The price is a little high.

I [last thanks]  
Thank Lei Feng for giving this opportunity!    
Thank all moderators and administrators!  
Thank you, everyone from Lei Feng. com!