[Preface]

In recent years, I have learned a new Chinese character - Haze（ mái）。 The place where I live is in Hebei, the so-called "important place in the capital". It can be said that every day I personally experience the "colorful and tasty" air. The government and the media are all advocating and calling for people to be low-carbon, environmentally friendly and take care of the environment. Naturally, we are all supportive. But in real life, food is to be eaten, warmth is to be taken, and cars are to be driven... It seems that there is little we can do, but I would like to say that "silicon goes a long way", as long as we pay attention, In fact, every little thing around us can achieve low-carbon life, such as the self generating wireless doorbell, linbell G4, which is "battery free, worry free and environmentally friendly".

[Unpacking]

Linbell G4 is packed in kraft paper boxes, printed in simple black monochrome font, and has warm reminders on the box body to remind reuse, which reflects its design concept of environmental protection and low-carbon everywhere. The following is the dynamic diagram of unpacking.

The logo logo of LinkedIn Technology is on the top left of the front of the packaging box, and the center is a sketch of the transmitter and receiver, which is a simple packaging style.

The white sticker on the top of the back is the product model, barcode, manufacturer information and the QR code of LinkedIn's official account, and the functional highlights of the G4 doorbell are printed on the bottom.

The box is a pull out design, and the corrugated box with thin inner layer looks very strong and feels very strong.

The pattern in the box is also very compact, and the anti-collision compartment tightly blocks the two parts of the doorbell.

The doorbell is divided into transmitter and receiver, and is provided with a double-sided adhesive tape and two expansion screws for installing the transmitter.

Close up

1. Receiver. There are only two buttons on the front of the receiver, which are integrated with the indicator light. The left button is the volume adjustment button. Short press the 5th gear volume cycle switch (4321+mute), and it has the power failure memory function (the volume setting is still the power failure after re plugging). The right button is the music selection key. Short press to cycle through 36 pieces of music. The switch here does not change the music corresponding to the transmitter (to change the music corresponding to the transmitter, you need to set it under the "Learning Mode", which will be explained later). The plug area on the back is higher than the loudspeaker hole, so this design can avoid the ring sound being blocked when plugged into the socket.

2. Transmitter. There is nothing on the front side of the transmitter except the logo of Linbell and a circular groove, and the back side is a removable bottom plate for mounting screws.

After signing in this activity, the author once held a skeptical attitude Love to play computer games In the Q&A section of, did the so-called "self generation" store the electric energy converted from kinetic energy? Two enthusiastic netizens answered that there must be a battery in it (to avoid embarrassment, you can code them). Is there any power storage device in the transmitter? I am usually a "hand wrecker", and many things I disassemble often end up scrapping. But this time, curiosity drove me to disassemble the transmitter of G4, and I didn't find any batteries in it, Instead, I saw the coils and magnets that our physics teacher demonstrated to us when we were in middle school (the author is a liberal arts graduate, but I am still impressed with the generator principle "magnetism generates electricity" that the physics teacher said). It seems that "self generation" is not blowing. In addition, the transmitter does not use a screw. The screwdriver in the figure is used to pry open the shell. Linbell G4 will implement the principle of environmental protection and low-carbon in the end.

3. Accessories and instructions. The transmitter has two installation schemes, and the accessories have been equipped with the required double-sided adhesive tape and screws. The description of the manual is also quite detailed, but there are 36 kinds of ringtones actually, and the "16 kinds" in the manual should be a clerical error. In addition, the warranty card and the manual are printed together.

[Experience]

The installation process is very simple. First, insert the transmitter into the two hole socket. Here, we need to talk about it. Most of the wall plugs are five holes. After inserting the receiver into the wall, the three hole positions below will be completely blocked. Even if the receiver is inserted into the bottom in reverse, it will still cover part of the receiver. So we hope the designer will consider whether to make the receiver smaller. After power on, the indicator flashes and the bell rings. Pressing the transmitter bell is almost synchronous response. According to the instructions, the receiver should be at least 50cm above the ground.

Next, install the transmitter. The advantages of wireless connection are obvious at the moment. You can easily paste it on the security door without wiring or chiseling the wall. (Before pasting, try to see if it works normally.) If you want to install it on an uneven or dusty wall, you need to use screws. After installation, the transmitter and base can still be separated and removed if necessary.

Next, it can be used normally. Not only is the transmitter self generating, but also the receiver consumes very little power. So, feel free to enjoy your environment-friendly and low-carbon life.

[Learning Mode]

As mentioned above, when you want to change the ringing music, you need to enter the "learning mode" to set it. First, briefly press the music selection key on the receiver until your favorite music is played, and then long press any key for more than 3 seconds until the indicator light is gradually on and off. At this time, the receiver has entered the learning mode, and then press the transmitter. At this time, the receiver will sound the selected music, and then press the transmitter again to play the selected music.

In addition, Linbell G4 supports one by one or more by one. You can choose several transmitters or receivers, which are installed at different doors or plugged into different sockets. Setting different ringing tones according to the above learning mode can easily distinguish where there are visitors at the front and back doors. If you are a large family, you can also install multiple receivers to avoid the situation that you cannot hear the ringing in other rooms.

[Official account]

Scan the QR code on the back of the packaging box to follow the official WeChat official account of Ringpur Technology, and learn more about the product information. It may be that G4 is still in the stage of crowdfunding and has not been officially launched yet. We can't find the information about this model for the time being. We hope it can be improved as soon as possible.

[Suggestions and Summary]

After a period of use, the self generating technology of linbell G4 is very commendable. Needless to say, it saves the trouble of drilling, pulling wires and replacing batteries. We can make a small contribution to the low-carbon environmental protection cause from the side. Here are some suggestions:

1. Reduce the volume of the receiver to avoid covering the lower jack when plugging in.

2. The transmitter is equipped with an indicator light to remind visitors that the key is valid and the doorbell has been connected.

3. The sign of "Please ring the doorbell" should be included, preferably luminous (phosphor).

4. Improve the press feel of the transmitter, hoping it can be designed more crisp and smooth, and reduce noise.

5. Simplify the steps of selecting and setting ringing tones. "One by one" should be the most popular choice, so we hope to change the ringing tones by clicking the receiver.

There is a big technological innovation hidden in the small doorbell. I hope that starting from the small doorbell, the power generation technology can be more applied in our daily life. I believe that if everyone practices a low-carbon and environmentally friendly lifestyle, we will certainly get our original blue water and sky.

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