The doorbell seems to be an inconspicuous small object, but it is still used frequently in home life. Ordinary doorbells are usually powered by dry batteries, and the batteries need to be replaced after a long time of use. Moreover, they generally have low appearance, poor hand feel, and monotonous ringtones. Now, from the GEEK team of Huazhong University of Science and Technology, Wuhan Linkup Technology Co., Ltd. has produced such a doorbell product. It has excellent industrial design, wide keys, good feel, and a variety of ring tones to choose from. The most important thing is that it can generate power by itself without external power supply or charging. It is the linbell G series doorbell, which has been launched to the fourth generation of products, It is named linbell G4.

The outer packaging of linbell G4 is a simple design style, adhering to the consistent environmental protection style of the linbell brand. I believe that many users can reuse this small box, and environmental protection starts with me.

The back of the package is printed with seven features of the product: no battery, wireless remote control, free code matching, power-off memory, front and rear door differentiation, adjustable volume, ultra-low power consumption, which makes it clear at a glance, so that users can have a general understanding of the product at the first time.

The linbell G4 doorbell is a one-to-one set, consisting of a transmitter and a receiver, which are unified into pure white and rectangular shapes. Compared with the square shapes of the previous generation G1 and the circular shapes of G2 and G3, it occupies less area, which is more conducive to layout and can be perfectly integrated with the home style.

The product logo and linbell logo in the shape of doorbell are printed on the top of the front of the transmitter, and a circular groove similar to the home key of the mobile phone is printed on the bottom. This design can increase the touch of the keys.

It can be seen from the back that the doorbell transmitter is wide at the top and narrow at the bottom. Pressing the lower part of the transmitter will trigger the signal transmitting function based on the principle of rocker.

The doorbell transmitter can be installed in a nondestructive manner. The receiver can be easily fixed on a clean and flat wall surface by using the attached 3M double-sided adhesive tape that has been cut out.

The rear cover of the transmitter can be pried off by prying the groove at the bottom of the transmitter with a flat screwdriver. In fact, it can be pried off with a little force with a fingernail, which is very convenient for disassembly.

Two sets of self tapping screws are attached with the doorbell. If the fixed wall is easy to remove dust, try to fix the doorbell transmitter on the wall in this way.

The transmitter is all fixed by snap. Continue to pry the back plate of the transmitter with a screwdriver The internal kinetic energy power generation module can be seen. The kinetic energy power generation module applies Faraday's law of electromagnetic induction. The wrapped red hidden antenna makes full use of space. The plane motion power generation mode is adopted. The unit travel efficiency is higher than the traditional rotary cutting magnetic induction line power generation efficiency. This is the biggest secret and highlight of the linbell G4 doorbell, Although the sparrow is well equipped, who would have thought that a self generating machine capable of kinetic energy could be integrated in this small space?

After looking at the transmitter, look at the receiver. The receiver design of the linbell G4 doorbell is also very simple. There are only two physical buttons at the lower center of the front, namely the volume button and the music button.

From the back of the receiver, it can be seen that this is a device that needs socket power supply. It is not self generating like the transmitter, probably because of power consumption. It would be even cooler if it could be integrated with the transmitter and self generating.

The receiver is very compact, so it will not occupy more holes when plugged into the socket. The design is very considerate.

Press the volume key to adjust the volume and mute of the 4th gear. Press the music key to realize the cycle selection and switch of 16 pieces of music. All of them have the memory function. The keys are integrated with the blue backlight, with a sense of technology.

The manual is a thin page, but it covers everything you want to know. It will be helpful to have a look before use.

linbell G4 The doorbell receiver has the function of relaying and forwarding, which can expand the transmission distance of doorbell wireless transmission signals, and one transmitter can remotely control multiple receivers at the same time to achieve one to pull more or one to pull more. It's no problem to have several external doors at home. Of course, there is only one product I tried, and the above functions cannot be tested, but a single product has been coded when it leaves the factory, Users can use it directly, which is very convenient for ordinary users.

Fix the doorbell transmitter outside the door with 3M glue installation method, and press the sweet bell to ring immediately. Life is so simple.

In general, the linbell G4 doorbell is a creative product. It uses the coil to realize the self power generation of the external machine. With the internal machine powered by the socket, it can be installed once for life without maintenance, energy conservation and environmental protection. It is easy to use and has beautiful and fashionable design. It is an ideal choice for family use.

Of course, there are also some shortcomings. For example, it is a pity that doorbell does not support intelligent control today when smart home products are popular. Adding intelligence can record the use of doorbell, trigger reminders and scene linkage, and download ringtones online, which I hope will be reflected in future products.

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