Some time ago, the original headphones didn't know where I was lost. Although I didn't use my mobile phone to listen to music very often, but the mobile phone didn't have headphones, just like eating French fries without ketchup, I always felt that something was missing. So, After three times and four times of hard work and pleading, I finally got this earphone in a bandit friend-dostyle HS307.
It is worth mentioning that although the wire of the HS307 in my hand is red, but this red color is not very bright red, but a deeper dark red, giving me the feeling that it is more stable. .
It is worth mentioning that although the wire of the HS307 in my hand is red, but this red color is not very bright red, but a deeper dark red, giving me the feeling that it is more stable. .
Sensitivity: 96±3dB/mW
Rated power: 5mW
Frequency response range: 20 Hz ~ 20 KHz
Line length: 1.8m
Weight: 11g
Plug type: 3.5mm
　 
Since I have not touched the brand's products before, I checked the information and learned that dostyle is a private brand of Jingdong. At present, the price of this dostyle HS307 earphone is 149 yuan. Originally, I only expected friends to give twenty. I can spread the goods and send me a message. I didn’t expect it... It seems that this friend is not staggered! 　 
In terms of packaging, there is nothing to say, that is, a carton folded into a red wrapping paper, which is very simple. In fact, the mascot puppy of Jingdong is printed on the package.~ The red HS307 crystal box in my hand is the same. It is a red and white color, full of Jingdong Faner, HS307 earphone body is placed inside. 　 
The red storage device is made of hard plastic material. Personally, it is not convenient for the rigid storage device to wrap around the wire. However, because the HS307 uses a noodle strip-shaped wire design, it is not easy to be entangled. Therefore, I basically use it directly to the bag, I will not take the time to wrap what, please take care of me in the late stage. 　 
The HS307 comes with three large, medium and small silicone sleeves of different sizes. The material of the silicone sleeve is very soft. It is not easy to cause ear pain when worn for a long time. And because the HS307 weighs only 11g, it is relatively lightweight and is put into the ear. Although it is still not said to be "wearing like wearing a experience", but the lightweight headphones and soft silicone sleeves give people a nuisance is really small. 　 
As mentioned above, the HS307 uses a noodle-type wire, which has a relatively good performance in anti-winding. It is more suitable for users who use it more casually. The length of the wire is 1.8m. People are still slightly higher, this length is generally sufficient. The stethoscope effect will still be there, as far as possible around the ear is it. It is worth mentioning that although the wire of the HS307 in my hand is red, but this red color is not very bright red, but a deeper dark red, giving me the feeling that it is more stable. .
　 
The HS307 is equipped with a single-button remote control design and integrated microphone. If a headset is mainly used on a mobile phone, it is convenient to have a remote control. The HS307 single-key remote control integrates multiple functions to achieve answering. / Hang up, pause / last song / next song, etc. are no problem, but if you want to increase or decrease the volume you have to take out the phone to adjust, or a little less convenient, but in this price range is not every Headphones will give you a line control and a microphone, there is better than nothing. 　 
The first half of the cavity part is made of plastic, the second half is made of metal, and the tail and side are painted with the corresponding color of the earphone. The overall work of the HS307 actually feels that it is in a fairly reasonable position. It makes people feel that it is very touching, but it does not make people feel that it can not accept such a balance. 　 
In fact, at the beginning, I did not expect too much from the metaphysical performance of HS307, but its sound quality after the ear was still somewhat unexpected. Although it can not talk about HiFi level, it does have some remarkable points. Especially if the object of PK is a mobile phone headset like Apple EarPods. 　 
In addition to the iPhone, I also used the A15, vivo X5Pro, which are relatively better quality front-end audition. In terms of sound, the HS307 is a warm plug, and the sound field is not very large. When listening to "California Hotel", It feels like listening to a concert in a small space, not crowded, but not very spacious, but despite this, his sound field is much better than ordinary mobile phone headsets. Good, listen carefully and can roughly locate the orientation of a certain instrument. 　 
The most unexpected thing about me is that the HS307 has a high resolution. Among them, the details of the mid-low frequency are particularly prominent. For example, the singer of the first singer of "One I Love" ventilates, swallows or flows from the singer's teeth. The sound details have also been better restored, and the details of the bass background of the climax can also be expressed. 　 
The low frequency will have a certain amount of volume. Listening to "The Ferry" means that the drum sound is very powerful, and the sound coming out is very tight, but the elasticity is not enough, just like a basketball that is full of fullness, throwing the ground fiercely. According to common sense, it should be bounced but not. In addition, the performance of the dive is also general. It can hear a little dive, but it dive very shallowly. There is a feeling of abrupt end, but the feeling of low frequency is still there. Yes, listening to some rock music with a rhythm is still no problem, or that sentence, much better than EarPods. 　 
In the IF aspect, the HS307 sounds fresher, and it feels better to listen to singers who are more clean. For example, Norah Jones, the hollyhock, and the classic song "La Vie En Rose" or "The Mantra" The fresh sound of Moon River is really intoxicating. If you want to listen to a singer like Louis Armstrong who is famous for his sound, he personally thinks it will be lighter. Of course, if you like fresh or mellow people, everyone. The taste. In general, the vocals are not very high, but they are not overwhelmed by the background instruments. The basic clarity is guaranteed. In addition, the problem of the teeth is still not too serious. No need to tangled. 　 
In the performance of high frequency, HS307's performance is more general, not transparent enough, and there is not much extension, such as the feeling of playing in a building where the ceiling is not very high, but this price of headphones, especially In terms of mobile phone headsets, how many of them can perform well at high frequencies? 　 
In terms of sound quality, HS307 is a good product, of course, the premise is relative to headphones at this price point. And I think that for a headset that is going to be used on a mobile phone, especially for non-audio enthusiasts, if Obviously it sounds better than the original earphones, then this headset is successful, for the enthusiasts, HS307 may not be enough, but if you just want to enter a relatively good sound quality mobile phone headset, HS307 can be considered . 　 
　 
In terms of packaging, there is nothing to say, that is, a carton folded into a red wrapping paper, which is very simple. In fact, the mascot puppy of Jingdong is actually printed on the package. The red HS307 crystal box in my hand is also Red and white color, full of Jingdong Faner, HS307 earphone body is placed inside. 　 
The red storage device is made of hard plastic material. Personally, it is not convenient for the rigid storage device to wrap around the wire. However, because the HS307 uses a noodle strip-shaped wire design, it is not easy to be entangled. Therefore, I basically use it directly to the bag, I will not take the time to wrap what, please take care of me in the late stage. 　 
The HS307 comes with three large, medium and small silicone sleeves of different sizes. The material of the silicone sleeve is very soft. It is not easy to cause ear pain when worn for a long time. And because the HS307 weighs only 11g, it is relatively lightweight and is put into the ear. Although it is still not said to be "wearing like wearing a experience", but the lightweight headphones and soft silicone sleeves give people a nuisance is really small. 　 
As mentioned above, the HS307 uses a noodle-type wire, which has a relatively good performance in anti-winding. It is more suitable for users who use it more casually. The length of the wire is 1.8m. People are still slightly higher, this length is generally sufficient. The stethoscope effect will still be there, as far as possible around the ear is it. It is worth mentioning that although the wire of the HS307 in my hand is red, but this red color is not very bright red, but a deeper dark red, giving me the feeling that it is more stable. .
　 
The HS307 is equipped with a single-button remote control design and integrated microphone. If a headset is mainly used on a mobile phone, it is convenient to have a remote control. The HS307 single-key remote control integrates multiple functions to achieve answering. / Hang up, pause / last song / next song, etc. are no problem, but if you want to increase or decrease the volume you have to take out the phone to adjust, or a little less convenient, but in this price range is not every Headphones will give you a line control and a microphone, there is better than nothing. 　 
The first half of the cavity part is made of plastic, the second half is made of metal, and the tail and side are painted with the corresponding color of the earphone. The overall work of the HS307 actually feels that it is in a fairly reasonable position. It makes people feel that it is very touching, but it does not make people feel that it can not accept such a balance. 　 
In fact, at the beginning, I did not expect too much from the metaphysical performance of HS307, but its sound quality after the ear was still somewhat unexpected. Although it can not talk about HiFi level, it does have some remarkable points. Especially if the object of PK is a mobile phone headset like Apple EarPods. 　 
In addition to the iPhone, I also used the A15, vivo X5Pro, which are relatively better quality front-end audition. In terms of sound, the HS307 is a warm plug, and the sound field is not very large. When listening to "California Hotel", It feels like listening to a concert in a small space, not crowded, but not very spacious, but despite this, his sound field is much better than ordinary mobile phone headsets. Good, listen carefully and can roughly locate the orientation of a certain instrument. 　 
The most unexpected thing about me is that the HS307 has a high resolution. Among them, the details of the mid-low frequency are particularly prominent. For example, the singer of the first singer of "One I Love" ventilates, swallows or flows from the singer's teeth. The sound details have also been better restored, and the details of the bass background of the climax can also be expressed. 　 
The low frequency will have a certain amount of volume. Listening to "The Ferry" means that the drum sound is very powerful, and the sound coming out is very tight, but the elasticity is not enough, just like a basketball that is full of fullness, throwing the ground fiercely. According to common sense, it should be bounced but not. In addition, the performance of the dive is also general. It can hear a little dive, but it dive very shallowly. There is a feeling of abrupt end, but the feeling of low frequency is still there. Yes, listening to some rock music with a rhythm is still no problem, or that sentence, much better than EarPods. 　 
In the IF aspect, the HS307 sounds fresher, and it feels better to listen to singers who are more clean. For example, Norah Jones, the hollyhock, and the classic song "La Vie En Rose" or "The Mantra" The fresh sound of Moon River is really intoxicating. If you want to listen to a singer like Louis Armstrong who is famous for his sound, he personally thinks it will be lighter. Of course, if you like fresh or mellow people, everyone. The taste. In general, the vocals are not very high, but they are not overwhelmed by the background instruments. The basic clarity is guaranteed. In addition, the problem of the teeth is still not too serious. No need to tangled. 　 
In the performance of high frequency, HS307's performance is more general, not transparent enough, and there is not much extension, such as the feeling of playing in a building where the ceiling is not very high, but this price of headphones, especially In terms of mobile phone headsets, how many of them can perform well at high frequencies? 　 
In terms of sound quality, HS307 is a good product, of course, the premise is relative to headphones at this price point. And I think that for a headset that is going to be used on a mobile phone, especially for non-audio enthusiasts, if Obviously it sounds better than the original earphones, then this headset is successful, for the enthusiasts, HS307 may not be enough, but if you just want to enter a relatively good sound quality mobile phone headset, HS307 can be considered . 　 
Headphone type: In-ear impedance: 16Ω±20% Sensitivity: 96±3dB/mW
Rated power: 5mW
Frequency response range: 20 Hz ~ 20 KHz
Line length: 1.8m
Weight: 11g
Plug type: 3.5mm
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