The initial understanding of wireless originated from wifi. The understanding of wireless convenience is actually derived from Bluetooth headsets. Who needs a wireless Bluetooth headset? Here are some of my opinions. When purchasing Bluetooth headsets, you should also choose from these perspectives in combination with your own needs.  
1. Love sports  
2. Don't like to be tied by wires  
3. It is not convenient to hold the phone with both hands, but there is a need to listen to music and make phone calls  
Secondly, what features should be paid attention to in the wireless Bluetooth headset:  
1. Waterproof  
2. Comfort (most important)  
3. Sound insulation (more important than sound quality)  
4. Not easy to fall off  
I hope my article can help you better understand this QCY QY19 Bluetooth headset. If there is something in the article that cannot be designed or is not objective enough, leave a message for me. I will answer or correct as soon as possible.  

Some friends of QCY brand may not be familiar with it. But in fact, it is very reliable. The first thing that became popular among enthusiasts was the sense of technology and design of products. And the cost performance ratio is also quite high. For this article, I choose QY19, which has attracted a lot of attention recently, to do a review and experience 。

From the perspective of packaging style and material, it has the style of a big brand. Paper materials are good, and the design is simple and reasonable, without excessive packaging. The hard outer packing box is very protective for earphones. The logistics transportation on the way of express delivery will not damage the body. This picture also shows that the logo position is highlighted. On the back are some important selling points and parameters of the headset. For example, IPX4's waterproof and Bluetooth chip (supporting Bluetooth 4.2, voice microphone noise reduction, and audio processing capability are also outstanding. It can be said that the configuration is very conscientious).

The space design in the packaging box is more reasonable. Accessories, instructions and earphone body have their own space. Although it is a very simple thing, the sense of order is very comfortable from a positive perspective. It can be seen that it is a hard work design.

Parts were also done conscientiously. We have both what we should have and what we should not have. No one has me, but people have me. No matter the material or the shape, you can choose the appropriate size. There are also many sizes. No matter you are a tough guy or a cute girl, you can find the size you like and fit.

 
The details of the earmuffs are also excellent. The use of double-layer design, sound insulation and comfort are better.  
 
 
The second thing I like about this earphone is the brushed metal cavity shell! In the outer outline, a circle of bright metal decorative strips are inlaid. Industrial processing technology is good. Both the appearance and feel are great. As for whether the sound quality has been improved, I don't know. He looks handsome, which is his main function. In addition to being handsome, he just formed a big accent with the cavity. It is more helpful to show the effect of bass.  
 
 
The charger socket is located outside the headphone cavity. It is convenient to open, and has good airtightness. Helps prevent water. There is an indicator light when charging.  
According to the description on the product detail page. The endurance should be excellent.  
*In more than a week of actual use, I used it intermittently for more than ten hours. The summarized endurance should be more than five hours. It is similar to the official endurance.  
 
 
Partial details of the headset by wire. The three buttons are widely separated and have profound marks. It can also distinguish which keys are used blindly. For the remote control part, I would like to say that the operation is very intuitive logic, not anti human. Short press to adjust the volume (the volume of the headset itself), long press to cut the song. And through a variety of different key lengths and combinations, it can realize the functions related to the phone, such as connecting, hanging up, siri voice assistant, switching calls, automatic redial, etc. In addition, when you control the headset, there is a very thoughtful voice prompt (Chinese and English can be selected).  
 
 
The waterproof level of IPX4 also has reasons. As you can see, the mesh outside the loudspeaker is designed as a waterproof mesh. The microphone and wire control module are sealed. Nanotechnology is used to realize the overall waterproof function by realizing low-pressure plasma surface polymerization or atomic layer deposition on the shallow surface of the material. Compared with many IPX4 waterproof products at the same price or even at a higher price, this is much better. I think it's not impossible to take a cold bath occasionally
 
 
As you can see, a detailed description and explanation of the use of the product is given in the manual.  
 
 
My comfort with this headset ranks first among the five Bluetooth headsets I have used. Not only the metal wire that can shape, but also the skin like material of the cavity+reasonable ear angle design.  
 
 
Here is a diagram of wearing. During the exercise, the earphones are very close to the ears. It will not bring too much influence because of sweating. Moreover, the existence of shark fins can make the whole headset more reliable. It is not easy to fall off.  
 
 
In terms of sound quality, take the songs I usually listen to as an example. Not the first ear amazing type, but it's good to listen more.  
Chengdu (female voice): The emptiness of the music itself is restored by earphones, and the sound field is very open. Although not as pleasant as the female poison earplugs, the not too much silent dental sound is good for a sports earphone.  
Xue Zhiqian was surprised. The overall feeling was good. The male voice's performance was not affected. It was a balanced effect of bass and baritone. Based on many songs I have heard, except for the slightly weaker high frequency, everything else is OK.  
In my opinion, the sound insulation rather than the sound quality is more important for Bluetooth headsets. In the gym with sound system, this earphone can isolate external noise. You can also hear music without turning it on very loud. The situation on the bus is not so good, and the only way to ensure normal use is to turn up the volume. Therefore, it is not recommended to listen to earphones for a long time on public transportation. After all, it is not good for ears.  
 
 
This is a product that takes me a long time to experience. I had a full experience for two weeks, during which I traveled on business and took high-speed rail, morning running, fitness equipment and treadmill. I feel that most of these earphones bring convenience and wear stability. As for the disadvantage, it is actually the small problem mentioned earlier, which may be that the sound quality is slightly weak. However, as a daily attendance sports headset, it is totally enough. If you need a suitable Bluetooth wireless sports headset, this QCY QY19 is definitely a good choice. At a price of about 90 yuan, you can't afford to be cheated. I bought a good headset that is practical and convenient.