The headset is an indispensable tool in daily life. Whether listening to music or making a phone call, it needs the support of the headset. But whether the kids have been crazy about the messy wires of earphones. And sometimes when you listen to music with the headset and put your phone on the desktop, if you get up accidentally, the wire of the headset will pull the phone, or even cause the phone to fall, and then the tragedy of screen fragmentation occurs. Want to get rid of the bondage of wire? The battery life of Bluetooth headsets is a headache, and the binaural Bluetooth headsets that can listen to music in the past are expensive. Most of the music Bluetooth headsets are headworn, not in ear, and it's a bit troublesome to take them out. Therefore, a good solution to make headphones wireless is imperative. The emergence of the listening key A1 has helped young friends who like listening to music and have long been tortured by wire rods to understand. On the premise of ensuring the sound quality, the wired headset can be used wirelessly. No matter in the sports situations such as riding and running, or in the travel, work and study situations, users can get a free use experience. Listen to the specific performance of key A1, talk less and begin to experience.

If a girl who likes listening to music gets such a magic instrument for listening to music, she will love it. No matter in terms of music, call functions, or the ever-changing fashion wearing methods, it is an option to add points to girls who like fashion and music.

The first is the green paper packaging that is popular for digital products. The integral outer box of the primary color of the pulp is marked with the highlight functions of various listening keys A1 on the side. From this aspect, you can have a panoramic view of most functions of the product. Simple and clear presentation. It can be seen from the side that listening key A1 is connected through Bluetooth 4.1.

The back of the box is printed with a brand logo of listening key. The overall packaging is very simple and clean.

When opening the packing box, first of all, there is a layer of anti-collision sponge on the upper layer to protect the product from impact damage. A gift card and a manual are included. The listening key A1 and the attached accessories are neatly pressed and placed in the reserved hole.

The accessories included a lanyard, a charging data cable, a collar clip, and a replacement cap for the lanyard. The accessories are rich and convenient for daily use.

The attached lanyard can turn the listening key A1 into a pendant, which can be directly hung on the neck as an ornament, so that it will be very convenient and beautiful to use in running, riding and other scenes.

The 3.5mm audio interface is set at the bottom of the listening key A1. It supports hot plugging and can switch music at any time without interruption. It is very convenient to use.

The switch key is set on the side of the listening key A1. A black round button, surrounded by a circle of red, is more eye-catching. Press the button for a long time, the red circle lights up to prove that the power has been turned on. Continue to press and hold the button. The red circle strobe can be connected by using the mobile phone to search the Bluetooth signal. In addition to the function of pausing playing music, pressing the key twice is the next song, and pressing the key three times is the previous song. During a call, it is the function of answering and ending.

The opposite side of the key is the red listening key brand LOGO.

The charging interface is set on the side of the listening key A1. The Micro USB interface is common to most Android phones.

The top of listening key A1 is designed as a hidden winder. If you want to hang A1 on your neck, you need to use a hidden winder, and then you need to use an attached replacement cap.

The two caps correspond to different ways of use. When using the collar clip, you can replace the cap without gaps. That is to say, it ensures functionality and also gives consideration to aesthetics. The design is very thoughtful.

Listen to the status of key A1 when the hidden winder is used. The wire of the headset can be directly hung on the neck as a lanyard, but it is not recommended to use this way when exercising. Sweat will corrode the wire more or less, so it is better to use the attached special lanyard when exercising and riding.

Although the listening button A1 looks very small, it still has a certain amount of thrust. You can also get a good hearing experience by using the large unit headphone, and no more audio quality is lost by using the front end direct push. The sound performance is still good. This type of connection will consume more power of A1, and the endurance may be slightly reduced compared with the previous 5 hours. For 5 hours of continuous listening time of earphones, it is enough for daily use. And the standby time is up to 10 days when it is not applicable.

The author, who likes tossing, connected the listening key A1 to the ear amplifier, and also got a good audio quality experience. There is no obvious difference in the sense of hearing when playing music with a directly connected front-end device.

The emergence of the listening key A1 has solved the problem that the iPhone 7 does not have a 3.5mm audio socket, making the original headphones can be directly adapted to the iPhone 7. In addition to being free of wire, it is also a good audio converter. The listening key A1 not only solves the problem of the iPhone 7 audio interface. Connect A1 to the audio interface of the home theater at home, and the old home theater will become wireless directly, making it more convenient to use.

I have experienced the function of listening to key A1 for a while and changing the wired headset into wireless, which is really convenient in daily life. It also directly makes the needs of listening to music in various scenes free and unrestrained. In terms of sound quality, the Refreshed technology of key A1 makes the sound restore clear and true. Stable Bluetooth transmission ensures uninterrupted music playing. Therefore, whether it is a convenient use experience in different scenarios or a high-quality sound restoration technology, listening button A1 is a good choice to turn wired headphones into wireless.

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